Home / 498,116.90-747,534.32-198,424.06

Finding the Fourth Proportional to 498,116.90, 747,534.32 and 198,424.06

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Solution

The fourth proportional to 498,116.90, 747,534.32 and 198,424.06 is: 297,779.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,116.90 : 747,534.32 = 198,424.06 : x
  2. Step 2: Convert to fraction form
    498,116.90/747,534.32 = 198,424.06/x
  3. Step 3: Cross multiply
    498,116.90x = 747,534.32 × 198,424.06
  4. Step 4: Simplify right side
    498,116.90x = 148,328,794,763.74
  5. Step 5: Solve for x
    x = 148,328,794,763.74/498,116.90
  6. Step 6: Final answer
    x = 297,779.09

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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.