Home / 1,098,876.90-1,647,528.15-424,380.90

Finding the Fourth Proportional to 1,098,876.90, 1,647,528.15 and 424,380.90

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Solution

The fourth proportional to 1,098,876.90, 1,647,528.15 and 424,380.90 is: 636,267.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,876.90 : 1,647,528.15 = 424,380.90 : x
  2. Step 2: Convert to fraction form
    1,098,876.90/1,647,528.15 = 424,380.90/x
  3. Step 3: Cross multiply
    1,098,876.90x = 1,647,528.15 × 424,380.90
  4. Step 4: Simplify right side
    1,098,876.90x = 699,179,479,072.34
  5. Step 5: Solve for x
    x = 699,179,479,072.34/1,098,876.90
  6. Step 6: Final answer
    x = 636,267.34

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Double scale
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1.5x scale

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.