Home / 703,610.20-1,055,415.30-388,682.20

Finding the Fourth Proportional to 703,610.20, 1,055,415.30 and 388,682.20

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Solution

The fourth proportional to 703,610.20, 1,055,415.30 and 388,682.20 is: 583,023.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,610.20 : 1,055,415.30 = 388,682.20 : x
  2. Step 2: Convert to fraction form
    703,610.20/1,055,415.30 = 388,682.20/x
  3. Step 3: Cross multiply
    703,610.20x = 1,055,415.30 × 388,682.20
  4. Step 4: Simplify right side
    703,610.20x = 410,221,140,717.66
  5. Step 5: Solve for x
    x = 410,221,140,717.66/703,610.20
  6. Step 6: Final answer
    x = 583,023.30

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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.