Home / 1,189,475.41-1,641,471.97-645,611.17

Finding the Fourth Proportional to 1,189,475.41, 1,641,471.97 and 645,611.17

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Solution

The fourth proportional to 1,189,475.41, 1,641,471.97 and 645,611.17 is: 890,941.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,475.41 : 1,641,471.97 = 645,611.17 : x
  2. Step 2: Convert to fraction form
    1,189,475.41/1,641,471.97 = 645,611.17/x
  3. Step 3: Cross multiply
    1,189,475.41x = 1,641,471.97 × 645,611.17
  4. Step 4: Simplify right side
    1,189,475.41x = 1,059,752,639,073.90
  5. Step 5: Solve for x
    x = 1,059,752,639,073.90/1,189,475.41
  6. Step 6: Final answer
    x = 890,941.19

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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.