Home / 1,149,142.70-1,722,516.64-642,961.55

Finding the Fourth Proportional to 1,149,142.70, 1,722,516.64 and 642,961.55

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Solution

The fourth proportional to 1,149,142.70, 1,722,516.64 and 642,961.55 is: 963,772.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,142.70 : 1,722,516.64 = 642,961.55 : x
  2. Step 2: Convert to fraction form
    1,149,142.70/1,722,516.64 = 642,961.55/x
  3. Step 3: Cross multiply
    1,149,142.70x = 1,722,516.64 × 642,961.55
  4. Step 4: Simplify right side
    1,149,142.70x = 1,107,511,971,454.08
  5. Step 5: Solve for x
    x = 1,107,511,971,454.08/1,149,142.70
  6. Step 6: Final answer
    x = 963,772.36

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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.