Home / 918,082.20-1,377,414.90-412,447.80

Finding the Fourth Proportional to 918,082.20, 1,377,414.90 and 412,447.80

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Solution

The fourth proportional to 918,082.20, 1,377,414.90 and 412,447.80 is: 618,802.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,082.20 : 1,377,414.90 = 412,447.80 : x
  2. Step 2: Convert to fraction form
    918,082.20/1,377,414.90 = 412,447.80/x
  3. Step 3: Cross multiply
    918,082.20x = 1,377,414.90 × 412,447.80
  4. Step 4: Simplify right side
    918,082.20x = 568,111,745,192.22
  5. Step 5: Solve for x
    x = 568,111,745,192.22/918,082.20
  6. Step 6: Final answer
    x = 618,802.70

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1.5x scale

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.