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Finding the Fourth Proportional to 703,471.78, 970,733.55 and 397,574.38

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Solution

The fourth proportional to 703,471.78, 970,733.55 and 397,574.38 is: 548,620.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,471.78 : 970,733.55 = 397,574.38 : x
  2. Step 2: Convert to fraction form
    703,471.78/970,733.55 = 397,574.38/x
  3. Step 3: Cross multiply
    703,471.78x = 970,733.55 × 397,574.38
  4. Step 4: Simplify right side
    703,471.78x = 385,938,789,286.45
  5. Step 5: Solve for x
    x = 385,938,789,286.45/703,471.78
  6. Step 6: Final answer
    x = 548,620.14

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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.