Home / 906,049.38-1,360,123.96-486,145.38

Finding the Fourth Proportional to 906,049.38, 1,360,123.96 and 486,145.38

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Solution

The fourth proportional to 906,049.38, 1,360,123.96 and 486,145.38 is: 729,781.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,049.38 : 1,360,123.96 = 486,145.38 : x
  2. Step 2: Convert to fraction form
    906,049.38/1,360,123.96 = 486,145.38/x
  3. Step 3: Cross multiply
    906,049.38x = 1,360,123.96 × 486,145.38
  4. Step 4: Simplify right side
    906,049.38x = 661,217,979,381.31
  5. Step 5: Solve for x
    x = 661,217,979,381.31/906,049.38
  6. Step 6: Final answer
    x = 729,781.39

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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.