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Finding the Fourth Proportional to 505,963.85, 759,459.32 and 253,425.29

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Solution

The fourth proportional to 505,963.85, 759,459.32 and 253,425.29 is: 380,395.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,963.85 : 759,459.32 = 253,425.29 : x
  2. Step 2: Convert to fraction form
    505,963.85/759,459.32 = 253,425.29/x
  3. Step 3: Cross multiply
    505,963.85x = 759,459.32 × 253,425.29
  4. Step 4: Simplify right side
    505,963.85x = 192,466,198,414.20
  5. Step 5: Solve for x
    x = 192,466,198,414.20/505,963.85
  6. Step 6: Final answer
    x = 380,395.16

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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.