Home / 457,546.86-686,310.57-125,122.86

Finding the Fourth Proportional to 457,546.86, 686,310.57 and 125,122.86

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Solution

The fourth proportional to 457,546.86, 686,310.57 and 125,122.86 is: 187,681.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,546.86 : 686,310.57 = 125,122.86 : x
  2. Step 2: Convert to fraction form
    457,546.86/686,310.57 = 125,122.86/x
  3. Step 3: Cross multiply
    457,546.86x = 686,310.57 × 125,122.86
  4. Step 4: Simplify right side
    457,546.86x = 85,873,141,366.63
  5. Step 5: Solve for x
    x = 85,873,141,366.63/457,546.86
  6. Step 6: Final answer
    x = 187,681.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.