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Finding the Fourth Proportional to 703,095.40, 970,331.34 and 397,227.88

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Solution

The fourth proportional to 703,095.40, 970,331.34 and 397,227.88 is: 548,208.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,095.40 : 970,331.34 = 397,227.88 : x
  2. Step 2: Convert to fraction form
    703,095.40/970,331.34 = 397,227.88/x
  3. Step 3: Cross multiply
    703,095.40x = 970,331.34 × 397,227.88
  4. Step 4: Simplify right side
    703,095.40x = 385,442,661,085.76
  5. Step 5: Solve for x
    x = 385,442,661,085.76/703,095.40
  6. Step 6: Final answer
    x = 548,208.20

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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.