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Finding the Fourth Proportional to 703,103.04, 970,342.20 and 397,235.88

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Solution

The fourth proportional to 703,103.04, 970,342.20 and 397,235.88 is: 548,219.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,103.04 : 970,342.20 = 397,235.88 : x
  2. Step 2: Convert to fraction form
    703,103.04/970,342.20 = 397,235.88/x
  3. Step 3: Cross multiply
    703,103.04x = 970,342.20 × 397,235.88
  4. Step 4: Simplify right side
    703,103.04x = 385,454,737,718.14
  5. Step 5: Solve for x
    x = 385,454,737,718.14/703,103.04
  6. Step 6: Final answer
    x = 548,219.42

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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.