Home / 1,098,103.30-1,643,947.35-783,175.30

Finding the Fourth Proportional to 1,098,103.30, 1,643,947.35 and 783,175.30

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Solution

The fourth proportional to 1,098,103.30, 1,643,947.35 and 783,175.30 is: 1,172,475.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,103.30 : 1,643,947.35 = 783,175.30 : x
  2. Step 2: Convert to fraction form
    1,098,103.30/1,643,947.35 = 783,175.30/x
  3. Step 3: Cross multiply
    1,098,103.30x = 1,643,947.35 × 783,175.30
  4. Step 4: Simplify right side
    1,098,103.30x = 1,287,498,959,020.46
  5. Step 5: Solve for x
    x = 1,287,498,959,020.46/1,098,103.30
  6. Step 6: Final answer
    x = 1,172,475.27

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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.