Home / 805,410.80-1,208,116.20-725,231.60

Finding the Fourth Proportional to 805,410.80, 1,208,116.20 and 725,231.60

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Solution

The fourth proportional to 805,410.80, 1,208,116.20 and 725,231.60 is: 1,087,847.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,410.80 : 1,208,116.20 = 725,231.60 : x
  2. Step 2: Convert to fraction form
    805,410.80/1,208,116.20 = 725,231.60/x
  3. Step 3: Cross multiply
    805,410.80x = 1,208,116.20 × 725,231.60
  4. Step 4: Simplify right side
    805,410.80x = 876,164,044,711.92
  5. Step 5: Solve for x
    x = 876,164,044,711.92/805,410.80
  6. Step 6: Final answer
    x = 1,087,847.40

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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.