Home / 457,847.76-631,827.92-256,643.76

Finding the Fourth Proportional to 457,847.76, 631,827.92 and 256,643.76

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Solution

The fourth proportional to 457,847.76, 631,827.92 and 256,643.76 is: 354,167.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,847.76 : 631,827.92 = 256,643.76 : x
  2. Step 2: Convert to fraction form
    457,847.76/631,827.92 = 256,643.76/x
  3. Step 3: Cross multiply
    457,847.76x = 631,827.92 × 256,643.76
  4. Step 4: Simplify right side
    457,847.76x = 162,154,693,061.78
  5. Step 5: Solve for x
    x = 162,154,693,061.78/457,847.76
  6. Step 6: Final answer
    x = 354,167.27

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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.