Home / 782,524.80-1,172,912.40-333,169.20

Finding the Fourth Proportional to 782,524.80, 1,172,912.40 and 333,169.20

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Solution

The fourth proportional to 782,524.80, 1,172,912.40 and 333,169.20 is: 499,381.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,524.80 : 1,172,912.40 = 333,169.20 : x
  2. Step 2: Convert to fraction form
    782,524.80/1,172,912.40 = 333,169.20/x
  3. Step 3: Cross multiply
    782,524.80x = 1,172,912.40 × 333,169.20
  4. Step 4: Simplify right side
    782,524.80x = 390,778,285,978.08
  5. Step 5: Solve for x
    x = 390,778,285,978.08/782,524.80
  6. Step 6: Final answer
    x = 499,381.34

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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.