Home / 905,711.40-1,358,523.90-306,613.80

Finding the Fourth Proportional to 905,711.40, 1,358,523.90 and 306,613.80

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Solution

The fourth proportional to 905,711.40, 1,358,523.90 and 306,613.80 is: 459,906.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,711.40 : 1,358,523.90 = 306,613.80 : x
  2. Step 2: Convert to fraction form
    905,711.40/1,358,523.90 = 306,613.80/x
  3. Step 3: Cross multiply
    905,711.40x = 1,358,523.90 × 306,613.80
  4. Step 4: Simplify right side
    905,711.40x = 416,542,175,369.82
  5. Step 5: Solve for x
    x = 416,542,175,369.82/905,711.40
  6. Step 6: Final answer
    x = 459,906.08

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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.