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Finding the Fourth Proportional to 457,801.68, 631,755 and 253,853.40

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Solution

The fourth proportional to 457,801.68, 631,755 and 253,853.40 is: 350,311.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,801.68 : 631,755 = 253,853.40 : x
  2. Step 2: Convert to fraction form
    457,801.68/631,755 = 253,853.40/x
  3. Step 3: Cross multiply
    457,801.68x = 631,755 × 253,853.40
  4. Step 4: Simplify right side
    457,801.68x = 160,373,154,717
  5. Step 5: Solve for x
    x = 160,373,154,717/457,801.68
  6. Step 6: Final answer
    x = 350,311.42

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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.