Home / 1,312,693.59-1,969,040.44-315,421.59

Finding the Fourth Proportional to 1,312,693.59, 1,969,040.44 and 315,421.59

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Solution

The fourth proportional to 1,312,693.59, 1,969,040.44 and 315,421.59 is: 473,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,693.59 : 1,969,040.44 = 315,421.59 : x
  2. Step 2: Convert to fraction form
    1,312,693.59/1,969,040.44 = 315,421.59/x
  3. Step 3: Cross multiply
    1,312,693.59x = 1,969,040.44 × 315,421.59
  4. Step 4: Simplify right side
    1,312,693.59x = 621,077,874,137.28
  5. Step 5: Solve for x
    x = 621,077,874,137.28/1,312,693.59
  6. Step 6: Final answer
    x = 473,132.40

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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.