Home / 498,419.64-747,747.54-198,916.92

Finding the Fourth Proportional to 498,419.64, 747,747.54 and 198,916.92

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Solution

The fourth proportional to 498,419.64, 747,747.54 and 198,916.92 is: 298,422.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,419.64 : 747,747.54 = 198,916.92 : x
  2. Step 2: Convert to fraction form
    498,419.64/747,747.54 = 198,916.92/x
  3. Step 3: Cross multiply
    498,419.64x = 747,747.54 × 198,916.92
  4. Step 4: Simplify right side
    498,419.64x = 148,739,637,594.38
  5. Step 5: Solve for x
    x = 148,739,637,594.38/498,419.64
  6. Step 6: Final answer
    x = 298,422.51

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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.