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Finding the Fourth Proportional to 703,055.20, 970,195.44 and 397,145.92

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Solution

The fourth proportional to 703,055.20, 970,195.44 and 397,145.92 is: 548,049.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,055.20 : 970,195.44 = 397,145.92 : x
  2. Step 2: Convert to fraction form
    703,055.20/970,195.44 = 397,145.92/x
  3. Step 3: Cross multiply
    703,055.20x = 970,195.44 × 397,145.92
  4. Step 4: Simplify right side
    703,055.20x = 385,309,160,598.61
  5. Step 5: Solve for x
    x = 385,309,160,598.61/703,055.20
  6. Step 6: Final answer
    x = 548,049.66

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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.