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Finding the Fourth Proportional to 531,164.28, 732,997.16 and 289,448.80

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Solution

The fourth proportional to 531,164.28, 732,997.16 and 289,448.80 is: 399,434.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,164.28 : 732,997.16 = 289,448.80 : x
  2. Step 2: Convert to fraction form
    531,164.28/732,997.16 = 289,448.80/x
  3. Step 3: Cross multiply
    531,164.28x = 732,997.16 × 289,448.80
  4. Step 4: Simplify right side
    531,164.28x = 212,165,148,365.41
  5. Step 5: Solve for x
    x = 212,165,148,365.41/531,164.28
  6. Step 6: Final answer
    x = 399,434.14

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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.