Home / 628,708.97-867,618.48-342,229.04

Finding the Fourth Proportional to 628,708.97, 867,618.48 and 342,229.04

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Solution

The fourth proportional to 628,708.97, 867,618.48 and 342,229.04 is: 472,276.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,708.97 : 867,618.48 = 342,229.04 : x
  2. Step 2: Convert to fraction form
    628,708.97/867,618.48 = 342,229.04/x
  3. Step 3: Cross multiply
    628,708.97x = 867,618.48 × 342,229.04
  4. Step 4: Simplify right side
    628,708.97x = 296,924,235,158.57
  5. Step 5: Solve for x
    x = 296,924,235,158.57/628,708.97
  6. Step 6: Final answer
    x = 472,276.13

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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.