Home / 329,836.20-494,754.30-290,437.80

Finding the Fourth Proportional to 329,836.20, 494,754.30 and 290,437.80

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Solution

The fourth proportional to 329,836.20, 494,754.30 and 290,437.80 is: 435,656.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,836.20 : 494,754.30 = 290,437.80 : x
  2. Step 2: Convert to fraction form
    329,836.20/494,754.30 = 290,437.80/x
  3. Step 3: Cross multiply
    329,836.20x = 494,754.30 × 290,437.80
  4. Step 4: Simplify right side
    329,836.20x = 143,695,350,432.54
  5. Step 5: Solve for x
    x = 143,695,350,432.54/329,836.20
  6. Step 6: Final answer
    x = 435,656.70

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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.