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Finding the Fourth Proportional to 457,477.64, 631,363.10 and 253,572.69

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Solution

The fourth proportional to 457,477.64, 631,363.10 and 253,572.69 is: 349,954.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,477.64 : 631,363.10 = 253,572.69 : x
  2. Step 2: Convert to fraction form
    457,477.64/631,363.10 = 253,572.69/x
  3. Step 3: Cross multiply
    457,477.64x = 631,363.10 × 253,572.69
  4. Step 4: Simplify right side
    457,477.64x = 160,096,438,365.88
  5. Step 5: Solve for x
    x = 160,096,438,365.88/457,477.64
  6. Step 6: Final answer
    x = 349,954.68

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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.