Home / 457,006.43-631,872.77-400,255.13

Finding the Fourth Proportional to 457,006.43, 631,872.77 and 400,255.13

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Solution

The fourth proportional to 457,006.43, 631,872.77 and 400,255.13 is: 553,406.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,006.43 : 631,872.77 = 400,255.13 : x
  2. Step 2: Convert to fraction form
    457,006.43/631,872.77 = 400,255.13/x
  3. Step 3: Cross multiply
    457,006.43x = 631,872.77 × 400,255.13
  4. Step 4: Simplify right side
    457,006.43x = 252,910,312,539.17
  5. Step 5: Solve for x
    x = 252,910,312,539.17/457,006.43
  6. Step 6: Final answer
    x = 553,406.47

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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.