Home / 487,324.78-731,111.85-187,724.93

Finding the Fourth Proportional to 487,324.78, 731,111.85 and 187,724.93

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Solution

The fourth proportional to 487,324.78, 731,111.85 and 187,724.93 is: 281,635.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,324.78 : 731,111.85 = 187,724.93 : x
  2. Step 2: Convert to fraction form
    487,324.78/731,111.85 = 187,724.93/x
  3. Step 3: Cross multiply
    487,324.78x = 731,111.85 × 187,724.93
  4. Step 4: Simplify right side
    487,324.78x = 137,247,917,207.86
  5. Step 5: Solve for x
    x = 137,247,917,207.86/487,324.78
  6. Step 6: Final answer
    x = 281,635.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.