Home / 717,715.40-1,078,905.90-615,072.20

Finding the Fourth Proportional to 717,715.40, 1,078,905.90 and 615,072.20

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Solution

The fourth proportional to 717,715.40, 1,078,905.90 and 615,072.20 is: 924,607.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,715.40 : 1,078,905.90 = 615,072.20 : x
  2. Step 2: Convert to fraction form
    717,715.40/1,078,905.90 = 615,072.20/x
  3. Step 3: Cross multiply
    717,715.40x = 1,078,905.90 × 615,072.20
  4. Step 4: Simplify right side
    717,715.40x = 663,605,025,505.98
  5. Step 5: Solve for x
    x = 663,605,025,505.98/717,715.40
  6. Step 6: Final answer
    x = 924,607.48

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Double scale
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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.