Home / 703,992.20-1,055,210.70-388,675.40

Finding the Fourth Proportional to 703,992.20, 1,055,210.70 and 388,675.40

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Solution

The fourth proportional to 703,992.20, 1,055,210.70 and 388,675.40 is: 582,583.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,992.20 : 1,055,210.70 = 388,675.40 : x
  2. Step 2: Convert to fraction form
    703,992.20/1,055,210.70 = 388,675.40/x
  3. Step 3: Cross multiply
    703,992.20x = 1,055,210.70 × 388,675.40
  4. Step 4: Simplify right side
    703,992.20x = 410,134,440,906.78
  5. Step 5: Solve for x
    x = 410,134,440,906.78/703,992.20
  6. Step 6: Final answer
    x = 582,583.79

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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.