Home / 1,189,474.16-1,641,470.24-645,609.92

Finding the Fourth Proportional to 1,189,474.16, 1,641,470.24 and 645,609.92

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Solution

The fourth proportional to 1,189,474.16, 1,641,470.24 and 645,609.92 is: 890,939.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,474.16 : 1,641,470.24 = 645,609.92 : x
  2. Step 2: Convert to fraction form
    1,189,474.16/1,641,470.24 = 645,609.92/x
  3. Step 3: Cross multiply
    1,189,474.16x = 1,641,470.24 × 645,609.92
  4. Step 4: Simplify right side
    1,189,474.16x = 1,059,749,476,046.48
  5. Step 5: Solve for x
    x = 1,059,749,476,046.48/1,189,474.16
  6. Step 6: Final answer
    x = 890,939.47

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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.