Home / 457,664.52-686,436.44-120,731.52

Finding the Fourth Proportional to 457,664.52, 686,436.44 and 120,731.52

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Solution

The fourth proportional to 457,664.52, 686,436.44 and 120,731.52 is: 181,081.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,664.52 : 686,436.44 = 120,731.52 : x
  2. Step 2: Convert to fraction form
    457,664.52/686,436.44 = 120,731.52/x
  3. Step 3: Cross multiply
    457,664.52x = 686,436.44 × 120,731.52
  4. Step 4: Simplify right side
    457,664.52x = 82,874,514,784.59
  5. Step 5: Solve for x
    x = 82,874,514,784.59/457,664.52
  6. Step 6: Final answer
    x = 181,081.36

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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.