Home / 498,543.66-687,986.55-272,189.16

Finding the Fourth Proportional to 498,543.66, 687,986.55 and 272,189.16

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Solution

The fourth proportional to 498,543.66, 687,986.55 and 272,189.16 is: 375,619.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,543.66 : 687,986.55 = 272,189.16 : x
  2. Step 2: Convert to fraction form
    498,543.66/687,986.55 = 272,189.16/x
  3. Step 3: Cross multiply
    498,543.66x = 687,986.55 × 272,189.16
  4. Step 4: Simplify right side
    498,543.66x = 187,262,481,135.80
  5. Step 5: Solve for x
    x = 187,262,481,135.80/498,543.66
  6. Step 6: Final answer
    x = 375,619.02

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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.