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Finding the Fourth Proportional to 460,387.90, 635,433.33 and 309,397.42

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Solution

The fourth proportional to 460,387.90, 635,433.33 and 309,397.42 is: 427,034.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,387.90 : 635,433.33 = 309,397.42 : x
  2. Step 2: Convert to fraction form
    460,387.90/635,433.33 = 309,397.42/x
  3. Step 3: Cross multiply
    460,387.90x = 635,433.33 × 309,397.42
  4. Step 4: Simplify right side
    460,387.90x = 196,601,432,884.01
  5. Step 5: Solve for x
    x = 196,601,432,884.01/460,387.90
  6. Step 6: Final answer
    x = 427,034.32

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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.