Home / 726,778.20-1,090,167.30-461,713.80

Finding the Fourth Proportional to 726,778.20, 1,090,167.30 and 461,713.80

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Solution

The fourth proportional to 726,778.20, 1,090,167.30 and 461,713.80 is: 692,570.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,778.20 : 1,090,167.30 = 461,713.80 : x
  2. Step 2: Convert to fraction form
    726,778.20/1,090,167.30 = 461,713.80/x
  3. Step 3: Cross multiply
    726,778.20x = 1,090,167.30 × 461,713.80
  4. Step 4: Simplify right side
    726,778.20x = 503,345,286,718.74
  5. Step 5: Solve for x
    x = 503,345,286,718.74/726,778.20
  6. Step 6: Final answer
    x = 692,570.70

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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.