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Finding the Fourth Proportional to 457,711.76, 631,679.65 and 253,826.63

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Solution

The fourth proportional to 457,711.76, 631,679.65 and 253,826.63 is: 350,301.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,711.76 : 631,679.65 = 253,826.63 : x
  2. Step 2: Convert to fraction form
    457,711.76/631,679.65 = 253,826.63/x
  3. Step 3: Cross multiply
    457,711.76x = 631,679.65 × 253,826.63
  4. Step 4: Simplify right side
    457,711.76x = 160,337,113,006.12
  5. Step 5: Solve for x
    x = 160,337,113,006.12/457,711.76
  6. Step 6: Final answer
    x = 350,301.50

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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.