Home / 931,498.52-1,397,247.79-300,412.34

Finding the Fourth Proportional to 931,498.52, 1,397,247.79 and 300,412.34

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Solution

The fourth proportional to 931,498.52, 1,397,247.79 and 300,412.34 is: 450,618.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,498.52 : 1,397,247.79 = 300,412.34 : x
  2. Step 2: Convert to fraction form
    931,498.52/1,397,247.79 = 300,412.34/x
  3. Step 3: Cross multiply
    931,498.52x = 1,397,247.79 × 300,412.34
  4. Step 4: Simplify right side
    931,498.52x = 419,750,470,416.46
  5. Step 5: Solve for x
    x = 419,750,470,416.46/931,498.52
  6. Step 6: Final answer
    x = 450,618.50

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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.