Home / 498,117.90-747,535.82-198,425.06

Finding the Fourth Proportional to 498,117.90, 747,535.82 and 198,425.06

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Solution

The fourth proportional to 498,117.90, 747,535.82 and 198,425.06 is: 297,780.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,117.90 : 747,535.82 = 198,425.06 : x
  2. Step 2: Convert to fraction form
    498,117.90/747,535.82 = 198,425.06/x
  3. Step 3: Cross multiply
    498,117.90x = 747,535.82 × 198,425.06
  4. Step 4: Simplify right side
    498,117.90x = 148,329,839,935.65
  5. Step 5: Solve for x
    x = 148,329,839,935.65/498,117.90
  6. Step 6: Final answer
    x = 297,780.59

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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.