Home / 928,000.80-1,392,001.20-718,048.80

Finding the Fourth Proportional to 928,000.80, 1,392,001.20 and 718,048.80

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Solution

The fourth proportional to 928,000.80, 1,392,001.20 and 718,048.80 is: 1,077,073.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,000.80 : 1,392,001.20 = 718,048.80 : x
  2. Step 2: Convert to fraction form
    928,000.80/1,392,001.20 = 718,048.80/x
  3. Step 3: Cross multiply
    928,000.80x = 1,392,001.20 × 718,048.80
  4. Step 4: Simplify right side
    928,000.80x = 999,524,791,258.56
  5. Step 5: Solve for x
    x = 999,524,791,258.56/928,000.80
  6. Step 6: Final answer
    x = 1,077,073.20

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Similar ratio
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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.