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Finding the Fourth Proportional to 531,126.60, 732,945.24 and 289,411.26

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Solution

The fourth proportional to 531,126.60, 732,945.24 and 289,411.26 is: 399,382.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,126.60 : 732,945.24 = 289,411.26 : x
  2. Step 2: Convert to fraction form
    531,126.60/732,945.24 = 289,411.26/x
  3. Step 3: Cross multiply
    531,126.60x = 732,945.24 × 289,411.26
  4. Step 4: Simplify right side
    531,126.60x = 212,122,605,419.40
  5. Step 5: Solve for x
    x = 212,122,605,419.40/531,126.60
  6. Step 6: Final answer
    x = 399,382.38

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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.