Home / 487,187.06-672,306.28-272,352.38

Finding the Fourth Proportional to 487,187.06, 672,306.28 and 272,352.38

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Solution

The fourth proportional to 487,187.06, 672,306.28 and 272,352.38 is: 375,839.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,187.06 : 672,306.28 = 272,352.38 : x
  2. Step 2: Convert to fraction form
    487,187.06/672,306.28 = 272,352.38/x
  3. Step 3: Cross multiply
    487,187.06x = 672,306.28 × 272,352.38
  4. Step 4: Simplify right side
    487,187.06x = 183,104,211,404.53
  5. Step 5: Solve for x
    x = 183,104,211,404.53/487,187.06
  6. Step 6: Final answer
    x = 375,839.65

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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.