Home / 787,381.93-1,086,574.79-443,217.11

Finding the Fourth Proportional to 787,381.93, 1,086,574.79 and 443,217.11

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Solution

The fourth proportional to 787,381.93, 1,086,574.79 and 443,217.11 is: 611,632.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,381.93 : 1,086,574.79 = 443,217.11 : x
  2. Step 2: Convert to fraction form
    787,381.93/1,086,574.79 = 443,217.11/x
  3. Step 3: Cross multiply
    787,381.93x = 1,086,574.79 × 443,217.11
  4. Step 4: Simplify right side
    787,381.93x = 481,588,536,006.57
  5. Step 5: Solve for x
    x = 481,588,536,006.57/787,381.93
  6. Step 6: Final answer
    x = 611,632.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.