Home / 498,015.86-747,023.10-198,706.64

Finding the Fourth Proportional to 498,015.86, 747,023.10 and 198,706.64

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Solution

The fourth proportional to 498,015.86, 747,023.10 and 198,706.64 is: 298,059.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,015.86 : 747,023.10 = 198,706.64 : x
  2. Step 2: Convert to fraction form
    498,015.86/747,023.10 = 198,706.64/x
  3. Step 3: Cross multiply
    498,015.86x = 747,023.10 × 198,706.64
  4. Step 4: Simplify right side
    498,015.86x = 148,438,450,203.38
  5. Step 5: Solve for x
    x = 148,438,450,203.38/498,015.86
  6. Step 6: Final answer
    x = 298,059.68

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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.