Home / 487,190.06-672,310.42-272,355.38

Finding the Fourth Proportional to 487,190.06, 672,310.42 and 272,355.38

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Solution

The fourth proportional to 487,190.06, 672,310.42 and 272,355.38 is: 375,843.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,190.06 : 672,310.42 = 272,355.38 : x
  2. Step 2: Convert to fraction form
    487,190.06/672,310.42 = 272,355.38/x
  3. Step 3: Cross multiply
    487,190.06x = 672,310.42 × 272,355.38
  4. Step 4: Simplify right side
    487,190.06x = 183,107,359,917.06
  5. Step 5: Solve for x
    x = 183,107,359,917.06/487,190.06
  6. Step 6: Final answer
    x = 375,843.79

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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.