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Finding the Fourth Proportional to 629,493.84, 868,674.30 and 357,560.88

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Solution

The fourth proportional to 629,493.84, 868,674.30 and 357,560.88 is: 493,418.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,493.84 : 868,674.30 = 357,560.88 : x
  2. Step 2: Convert to fraction form
    629,493.84/868,674.30 = 357,560.88/x
  3. Step 3: Cross multiply
    629,493.84x = 868,674.30 × 357,560.88
  4. Step 4: Simplify right side
    629,493.84x = 310,603,947,141.38
  5. Step 5: Solve for x
    x = 310,603,947,141.38/629,493.84
  6. Step 6: Final answer
    x = 493,418.56

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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.