Home / 918,251.80-1,377,377.70-815,900.20

Finding the Fourth Proportional to 918,251.80, 1,377,377.70 and 815,900.20

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Solution

The fourth proportional to 918,251.80, 1,377,377.70 and 815,900.20 is: 1,223,850.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,251.80 : 1,377,377.70 = 815,900.20 : x
  2. Step 2: Convert to fraction form
    918,251.80/1,377,377.70 = 815,900.20/x
  3. Step 3: Cross multiply
    918,251.80x = 1,377,377.70 × 815,900.20
  4. Step 4: Simplify right side
    918,251.80x = 1,123,802,740,905.54
  5. Step 5: Solve for x
    x = 1,123,802,740,905.54/918,251.80
  6. Step 6: Final answer
    x = 1,223,850.30

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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.