Home / 457,402.26-631,205.69-253,451.40

Finding the Fourth Proportional to 457,402.26, 631,205.69 and 253,451.40

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Solution

The fourth proportional to 457,402.26, 631,205.69 and 253,451.40 is: 349,757.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,402.26 : 631,205.69 = 253,451.40 : x
  2. Step 2: Convert to fraction form
    457,402.26/631,205.69 = 253,451.40/x
  3. Step 3: Cross multiply
    457,402.26x = 631,205.69 × 253,451.40
  4. Step 4: Simplify right side
    457,402.26x = 159,979,965,818.47
  5. Step 5: Solve for x
    x = 159,979,965,818.47/457,402.26
  6. Step 6: Final answer
    x = 349,757.71

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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.