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Finding the Fourth Proportional to 629,611.92, 868,822.20 and 357,737.04

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Solution

The fourth proportional to 629,611.92, 868,822.20 and 357,737.04 is: 493,653.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,611.92 : 868,822.20 = 357,737.04 : x
  2. Step 2: Convert to fraction form
    629,611.92/868,822.20 = 357,737.04/x
  3. Step 3: Cross multiply
    629,611.92x = 868,822.20 × 357,737.04
  4. Step 4: Simplify right side
    629,611.92x = 310,809,882,114.29
  5. Step 5: Solve for x
    x = 310,809,882,114.29/629,611.92
  6. Step 6: Final answer
    x = 493,653.11

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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.