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Finding the Fourth Proportional to 703,460.95, 970,825.38 and 397,565.60

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Solution

The fourth proportional to 703,460.95, 970,825.38 and 397,565.60 is: 548,668.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,460.95 : 970,825.38 = 397,565.60 : x
  2. Step 2: Convert to fraction form
    703,460.95/970,825.38 = 397,565.60/x
  3. Step 3: Cross multiply
    703,460.95x = 970,825.38 × 397,565.60
  4. Step 4: Simplify right side
    703,460.95x = 385,966,777,121.99
  5. Step 5: Solve for x
    x = 385,966,777,121.99/703,460.95
  6. Step 6: Final answer
    x = 548,668.38

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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.