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Finding the Fourth Proportional to 457,711.58, 631,679.41 and 253,826.45

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Solution

The fourth proportional to 457,711.58, 631,679.41 and 253,826.45 is: 350,301.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,711.58 : 631,679.41 = 253,826.45 : x
  2. Step 2: Convert to fraction form
    457,711.58/631,679.41 = 253,826.45/x
  3. Step 3: Cross multiply
    457,711.58x = 631,679.41 × 253,826.45
  4. Step 4: Simplify right side
    457,711.58x = 160,336,942,178.40
  5. Step 5: Solve for x
    x = 160,336,942,178.40/457,711.58
  6. Step 6: Final answer
    x = 350,301.26

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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.