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Finding the Fourth Proportional to 529,353.20, 730,425.15 and 314,487.74

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Solution

The fourth proportional to 529,353.20, 730,425.15 and 314,487.74 is: 433,944.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,353.20 : 730,425.15 = 314,487.74 : x
  2. Step 2: Convert to fraction form
    529,353.20/730,425.15 = 314,487.74/x
  3. Step 3: Cross multiply
    529,353.20x = 730,425.15 × 314,487.74
  4. Step 4: Simplify right side
    529,353.20x = 229,709,754,662.66
  5. Step 5: Solve for x
    x = 229,709,754,662.66/529,353.20
  6. Step 6: Final answer
    x = 433,944.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.