Home / 493,441.31-739,040.95-386,156.65

Finding the Fourth Proportional to 493,441.31, 739,040.95 and 386,156.65

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Solution

The fourth proportional to 493,441.31, 739,040.95 and 386,156.65 is: 578,357.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,441.31 : 739,040.95 = 386,156.65 : x
  2. Step 2: Convert to fraction form
    493,441.31/739,040.95 = 386,156.65/x
  3. Step 3: Cross multiply
    493,441.31x = 739,040.95 × 386,156.65
  4. Step 4: Simplify right side
    493,441.31x = 285,385,580,060.41
  5. Step 5: Solve for x
    x = 285,385,580,060.41/493,441.31
  6. Step 6: Final answer
    x = 578,357.70

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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.