Home / 638,715.16-958,128.07-234,017.29

Finding the Fourth Proportional to 638,715.16, 958,128.07 and 234,017.29

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Solution

The fourth proportional to 638,715.16, 958,128.07 and 234,017.29 is: 351,046.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,715.16 : 958,128.07 = 234,017.29 : x
  2. Step 2: Convert to fraction form
    638,715.16/958,128.07 = 234,017.29/x
  3. Step 3: Cross multiply
    638,715.16x = 958,128.07 × 234,017.29
  4. Step 4: Simplify right side
    638,715.16x = 224,218,531,433.97
  5. Step 5: Solve for x
    x = 224,218,531,433.97/638,715.16
  6. Step 6: Final answer
    x = 351,046.20

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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.