Home / 538,176.02-742,397.82-320,229.86

Finding the Fourth Proportional to 538,176.02, 742,397.82 and 320,229.86

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Solution

The fourth proportional to 538,176.02, 742,397.82 and 320,229.86 is: 441,747.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,176.02 : 742,397.82 = 320,229.86 : x
  2. Step 2: Convert to fraction form
    538,176.02/742,397.82 = 320,229.86/x
  3. Step 3: Cross multiply
    538,176.02x = 742,397.82 × 320,229.86
  4. Step 4: Simplify right side
    538,176.02x = 237,737,949,962.91
  5. Step 5: Solve for x
    x = 237,737,949,962.91/538,176.02
  6. Step 6: Final answer
    x = 441,747.57

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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.