Home / 880,660.80-1,215,600.48-518,065.92

Finding the Fourth Proportional to 880,660.80, 1,215,600.48 and 518,065.92

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Solution

The fourth proportional to 880,660.80, 1,215,600.48 and 518,065.92 is: 715,100.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,660.80 : 1,215,600.48 = 518,065.92 : x
  2. Step 2: Convert to fraction form
    880,660.80/1,215,600.48 = 518,065.92/x
  3. Step 3: Cross multiply
    880,660.80x = 1,215,600.48 × 518,065.92
  4. Step 4: Simplify right side
    880,660.80x = 629,761,181,023.64
  5. Step 5: Solve for x
    x = 629,761,181,023.64/880,660.80
  6. Step 6: Final answer
    x = 715,100.73

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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.