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Finding the Fourth Proportional to 1,182,305.04, 1,631,581.12 and 645,761.04

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Solution

The fourth proportional to 1,182,305.04, 1,631,581.12 and 645,761.04 is: 891,150.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,182,305.04 : 1,631,581.12 = 645,761.04 : x
  2. Step 2: Convert to fraction form
    1,182,305.04/1,631,581.12 = 645,761.04/x
  3. Step 3: Cross multiply
    1,182,305.04x = 1,631,581.12 × 645,761.04
  4. Step 4: Simplify right side
    1,182,305.04x = 1,053,611,520,895.57
  5. Step 5: Solve for x
    x = 1,053,611,520,895.57/1,182,305.04
  6. Step 6: Final answer
    x = 891,150.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.