Home / 438,431.10-657,646.65-367,572.30

Finding the Fourth Proportional to 438,431.10, 657,646.65 and 367,572.30

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Solution

The fourth proportional to 438,431.10, 657,646.65 and 367,572.30 is: 551,358.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,431.10 : 657,646.65 = 367,572.30 : x
  2. Step 2: Convert to fraction form
    438,431.10/657,646.65 = 367,572.30/x
  3. Step 3: Cross multiply
    438,431.10x = 657,646.65 × 367,572.30
  4. Step 4: Simplify right side
    438,431.10x = 241,732,691,727.80
  5. Step 5: Solve for x
    x = 241,732,691,727.80/438,431.10
  6. Step 6: Final answer
    x = 551,358.45

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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.