Home / 492,726.10-739,089.15-386,437.90

Finding the Fourth Proportional to 492,726.10, 739,089.15 and 386,437.90

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Solution

The fourth proportional to 492,726.10, 739,089.15 and 386,437.90 is: 579,656.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,726.10 : 739,089.15 = 386,437.90 : x
  2. Step 2: Convert to fraction form
    492,726.10/739,089.15 = 386,437.90/x
  3. Step 3: Cross multiply
    492,726.10x = 739,089.15 × 386,437.90
  4. Step 4: Simplify right side
    492,726.10x = 285,612,059,038.79
  5. Step 5: Solve for x
    x = 285,612,059,038.79/492,726.10
  6. Step 6: Final answer
    x = 579,656.85

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Similar ratio
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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.