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Finding the Fourth Proportional to 703,470.78, 970,732.17 and 397,573.38

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Solution

The fourth proportional to 703,470.78, 970,732.17 and 397,573.38 is: 548,618.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,470.78 : 970,732.17 = 397,573.38 : x
  2. Step 2: Convert to fraction form
    703,470.78/970,732.17 = 397,573.38/x
  3. Step 3: Cross multiply
    703,470.78x = 970,732.17 × 397,573.38
  4. Step 4: Simplify right side
    703,470.78x = 385,937,269,901.64
  5. Step 5: Solve for x
    x = 385,937,269,901.64/703,470.78
  6. Step 6: Final answer
    x = 548,618.76

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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.