Home / 493,442.31-739,042.45-386,157.65

Finding the Fourth Proportional to 493,442.31, 739,042.45 and 386,157.65

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Solution

The fourth proportional to 493,442.31, 739,042.45 and 386,157.65 is: 578,359.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,442.31 : 739,042.45 = 386,157.65 : x
  2. Step 2: Convert to fraction form
    493,442.31/739,042.45 = 386,157.65/x
  3. Step 3: Cross multiply
    493,442.31x = 739,042.45 × 386,157.65
  4. Step 4: Simplify right side
    493,442.31x = 285,386,895,742.24
  5. Step 5: Solve for x
    x = 285,386,895,742.24/493,442.31
  6. Step 6: Final answer
    x = 578,359.19

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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.