Home / 427,566.57-641,535.92-268,008.18

Finding the Fourth Proportional to 427,566.57, 641,535.92 and 268,008.18

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Solution

The fourth proportional to 427,566.57, 641,535.92 and 268,008.18 is: 402,128.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,566.57 : 641,535.92 = 268,008.18 : x
  2. Step 2: Convert to fraction form
    427,566.57/641,535.92 = 268,008.18/x
  3. Step 3: Cross multiply
    427,566.57x = 641,535.92 × 268,008.18
  4. Step 4: Simplify right side
    427,566.57x = 171,936,874,323.83
  5. Step 5: Solve for x
    x = 171,936,874,323.83/427,566.57
  6. Step 6: Final answer
    x = 402,128.90

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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.