Home / 498,385.25-687,771.65-272,030.75

Finding the Fourth Proportional to 498,385.25, 687,771.65 and 272,030.75

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Solution

The fourth proportional to 498,385.25, 687,771.65 and 272,030.75 is: 375,402.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,385.25 : 687,771.65 = 272,030.75 : x
  2. Step 2: Convert to fraction form
    498,385.25/687,771.65 = 272,030.75/x
  3. Step 3: Cross multiply
    498,385.25x = 687,771.65 × 272,030.75
  4. Step 4: Simplify right side
    498,385.25x = 187,095,032,979.23
  5. Step 5: Solve for x
    x = 187,095,032,979.23/498,385.25
  6. Step 6: Final answer
    x = 375,402.43

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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.