Home / 498,127.29-687,207.65-326,087.34

Finding the Fourth Proportional to 498,127.29, 687,207.65 and 326,087.34

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Solution

The fourth proportional to 498,127.29, 687,207.65 and 326,087.34 is: 449,864.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,127.29 : 687,207.65 = 326,087.34 : x
  2. Step 2: Convert to fraction form
    498,127.29/687,207.65 = 326,087.34/x
  3. Step 3: Cross multiply
    498,127.29x = 687,207.65 × 326,087.34
  4. Step 4: Simplify right side
    498,127.29x = 224,089,712,490.52
  5. Step 5: Solve for x
    x = 224,089,712,490.52/498,127.29
  6. Step 6: Final answer
    x = 449,864.36

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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.