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Finding the Fourth Proportional to 457,480.62, 686,215.94 and 187,548.53

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Solution

The fourth proportional to 457,480.62, 686,215.94 and 187,548.53 is: 281,320.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,480.62 : 686,215.94 = 187,548.53 : x
  2. Step 2: Convert to fraction form
    457,480.62/686,215.94 = 187,548.53/x
  3. Step 3: Cross multiply
    457,480.62x = 686,215.94 × 187,548.53
  4. Step 4: Simplify right side
    457,480.62x = 128,698,786,440.75
  5. Step 5: Solve for x
    x = 128,698,786,440.75/457,480.62
  6. Step 6: Final answer
    x = 281,320.74

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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.