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Finding the Fourth Proportional to 703,470.20, 970,731.42 and 397,574.24

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Solution

The fourth proportional to 703,470.20, 970,731.42 and 397,574.24 is: 548,619.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,470.20 : 970,731.42 = 397,574.24 : x
  2. Step 2: Convert to fraction form
    703,470.20/970,731.42 = 397,574.24/x
  3. Step 3: Cross multiply
    703,470.20x = 970,731.42 × 397,574.24
  4. Step 4: Simplify right side
    703,470.20x = 385,937,806,550.62
  5. Step 5: Solve for x
    x = 385,937,806,550.62/703,470.20
  6. Step 6: Final answer
    x = 548,619.98

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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.