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Finding the Fourth Proportional to 442,770.84, 611,114.64 and 281,594.88

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Solution

The fourth proportional to 442,770.84, 611,114.64 and 281,594.88 is: 388,658.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,770.84 : 611,114.64 = 281,594.88 : x
  2. Step 2: Convert to fraction form
    442,770.84/611,114.64 = 281,594.88/x
  3. Step 3: Cross multiply
    442,770.84x = 611,114.64 × 281,594.88
  4. Step 4: Simplify right side
    442,770.84x = 172,086,753,717.04
  5. Step 5: Solve for x
    x = 172,086,753,717.04/442,770.84
  6. Step 6: Final answer
    x = 388,658.73

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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.