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Finding the Fourth Proportional to 703,753.79, 971,181.86 and 381,462.39

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Solution

The fourth proportional to 703,753.79, 971,181.86 and 381,462.39 is: 526,418.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,753.79 : 971,181.86 = 381,462.39 : x
  2. Step 2: Convert to fraction form
    703,753.79/971,181.86 = 381,462.39/x
  3. Step 3: Cross multiply
    703,753.79x = 971,181.86 × 381,462.39
  4. Step 4: Simplify right side
    703,753.79x = 370,469,351,532.93
  5. Step 5: Solve for x
    x = 370,469,351,532.93/703,753.79
  6. Step 6: Final answer
    x = 526,418.98

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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.