Home / 629,766.20-869,051.22-343,280.12

Finding the Fourth Proportional to 629,766.20, 869,051.22 and 343,280.12

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Solution

The fourth proportional to 629,766.20, 869,051.22 and 343,280.12 is: 473,712.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,766.20 : 869,051.22 = 343,280.12 : x
  2. Step 2: Convert to fraction form
    629,766.20/869,051.22 = 343,280.12/x
  3. Step 3: Cross multiply
    629,766.20x = 869,051.22 × 343,280.12
  4. Step 4: Simplify right side
    629,766.20x = 298,328,007,087.75
  5. Step 5: Solve for x
    x = 298,328,007,087.75/629,766.20
  6. Step 6: Final answer
    x = 473,712.32

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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.