Home / 859,178.80-1,285,706.40-748,079.20

Finding the Fourth Proportional to 859,178.80, 1,285,706.40 and 748,079.20

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Solution

The fourth proportional to 859,178.80, 1,285,706.40 and 748,079.20 is: 1,119,452.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,178.80 : 1,285,706.40 = 748,079.20 : x
  2. Step 2: Convert to fraction form
    859,178.80/1,285,706.40 = 748,079.20/x
  3. Step 3: Cross multiply
    859,178.80x = 1,285,706.40 × 748,079.20
  4. Step 4: Simplify right side
    859,178.80x = 961,810,215,146.88
  5. Step 5: Solve for x
    x = 961,810,215,146.88/859,178.80
  6. Step 6: Final answer
    x = 1,119,452.92

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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.