Home / 1,313,031.25-1,969,546.88-315,759.25

Finding the Fourth Proportional to 1,313,031.25, 1,969,546.88 and 315,759.25

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Solution

The fourth proportional to 1,313,031.25, 1,969,546.88 and 315,759.25 is: 473,638.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,031.25 : 1,969,546.88 = 315,759.25 : x
  2. Step 2: Convert to fraction form
    1,313,031.25/1,969,546.88 = 315,759.25/x
  3. Step 3: Cross multiply
    1,313,031.25x = 1,969,546.88 × 315,759.25
  4. Step 4: Simplify right side
    1,313,031.25x = 621,902,645,668.64
  5. Step 5: Solve for x
    x = 621,902,645,668.64/1,313,031.25
  6. Step 6: Final answer
    x = 473,638.88

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.