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Finding the Fourth Proportional to 703,156.95, 970,351.85 and 397,332.34

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Solution

The fourth proportional to 703,156.95, 970,351.85 and 397,332.34 is: 548,315.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,156.95 : 970,351.85 = 397,332.34 : x
  2. Step 2: Convert to fraction form
    703,156.95/970,351.85 = 397,332.34/x
  3. Step 3: Cross multiply
    703,156.95x = 970,351.85 × 397,332.34
  4. Step 4: Simplify right side
    703,156.95x = 385,552,169,751.28
  5. Step 5: Solve for x
    x = 385,552,169,751.28/703,156.95
  6. Step 6: Final answer
    x = 548,315.95

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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.