Home / 487,180.20-672,306.30-272,319.60

Finding the Fourth Proportional to 487,180.20, 672,306.30 and 272,319.60

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Solution

The fourth proportional to 487,180.20, 672,306.30 and 272,319.60 is: 375,799.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,180.20 : 672,306.30 = 272,319.60 : x
  2. Step 2: Convert to fraction form
    487,180.20/672,306.30 = 272,319.60/x
  3. Step 3: Cross multiply
    487,180.20x = 672,306.30 × 272,319.60
  4. Step 4: Simplify right side
    487,180.20x = 183,082,182,693.48
  5. Step 5: Solve for x
    x = 183,082,182,693.48/487,180.20
  6. Step 6: Final answer
    x = 375,799.72

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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.