Home / 457,504.38-686,453.13-221,023.98

Finding the Fourth Proportional to 457,504.38, 686,453.13 and 221,023.98

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Solution

The fourth proportional to 457,504.38, 686,453.13 and 221,023.98 is: 331,630.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,504.38 : 686,453.13 = 221,023.98 : x
  2. Step 2: Convert to fraction form
    457,504.38/686,453.13 = 221,023.98/x
  3. Step 3: Cross multiply
    457,504.38x = 686,453.13 × 221,023.98
  4. Step 4: Simplify right side
    457,504.38x = 151,722,602,876.06
  5. Step 5: Solve for x
    x = 151,722,602,876.06/457,504.38
  6. Step 6: Final answer
    x = 331,630.93

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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.