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Finding the Fourth Proportional to 531,159.50, 732,996.05 and 289,441.32

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Solution

The fourth proportional to 531,159.50, 732,996.05 and 289,441.32 is: 399,426.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,159.50 : 732,996.05 = 289,441.32 : x
  2. Step 2: Convert to fraction form
    531,159.50/732,996.05 = 289,441.32/x
  3. Step 3: Cross multiply
    531,159.50x = 732,996.05 × 289,441.32
  4. Step 4: Simplify right side
    531,159.50x = 212,159,342,819.58
  5. Step 5: Solve for x
    x = 212,159,342,819.58/531,159.50
  6. Step 6: Final answer
    x = 399,426.81

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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.