Home / 439,017.12-657,501.82-372,221.28

Finding the Fourth Proportional to 439,017.12, 657,501.82 and 372,221.28

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Solution

The fourth proportional to 439,017.12, 657,501.82 and 372,221.28 is: 557,463.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,017.12 : 657,501.82 = 372,221.28 : x
  2. Step 2: Convert to fraction form
    439,017.12/657,501.82 = 372,221.28/x
  3. Step 3: Cross multiply
    439,017.12x = 657,501.82 × 372,221.28
  4. Step 4: Simplify right side
    439,017.12x = 244,736,169,042.73
  5. Step 5: Solve for x
    x = 244,736,169,042.73/439,017.12
  6. Step 6: Final answer
    x = 557,463.84

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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.