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Finding the Fourth Proportional to 702,304.68, 969,192.96 and 396,442.20

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Solution

The fourth proportional to 702,304.68, 969,192.96 and 396,442.20 is: 547,097.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,304.68 : 969,192.96 = 396,442.20 : x
  2. Step 2: Convert to fraction form
    702,304.68/969,192.96 = 396,442.20/x
  3. Step 3: Cross multiply
    702,304.68x = 969,192.96 × 396,442.20
  4. Step 4: Simplify right side
    702,304.68x = 384,228,989,286.91
  5. Step 5: Solve for x
    x = 384,228,989,286.91/702,304.68
  6. Step 6: Final answer
    x = 547,097.29

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1.5x scale

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.