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Finding the Fourth Proportional to 703,061.57, 970,284.71 and 397,194.08

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Solution

The fourth proportional to 703,061.57, 970,284.71 and 397,194.08 is: 548,161.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,061.57 : 970,284.71 = 397,194.08 : x
  2. Step 2: Convert to fraction form
    703,061.57/970,284.71 = 397,194.08/x
  3. Step 3: Cross multiply
    703,061.57x = 970,284.71 × 397,194.08
  4. Step 4: Simplify right side
    703,061.57x = 385,391,335,889.12
  5. Step 5: Solve for x
    x = 385,391,335,889.12/703,061.57
  6. Step 6: Final answer
    x = 548,161.58

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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.