Home / 457,677.34-686,562.14-120,741.28

Finding the Fourth Proportional to 457,677.34, 686,562.14 and 120,741.28

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Solution

The fourth proportional to 457,677.34, 686,562.14 and 120,741.28 is: 181,124.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,677.34 : 686,562.14 = 120,741.28 : x
  2. Step 2: Convert to fraction form
    457,677.34/686,562.14 = 120,741.28/x
  3. Step 3: Cross multiply
    457,677.34x = 686,562.14 × 120,741.28
  4. Step 4: Simplify right side
    457,677.34x = 82,896,391,583.14
  5. Step 5: Solve for x
    x = 82,896,391,583.14/457,677.34
  6. Step 6: Final answer
    x = 181,124.09

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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.