Home / 629,761.66-869,071.12-343,281.75

Finding the Fourth Proportional to 629,761.66, 869,071.12 and 343,281.75

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Solution

The fourth proportional to 629,761.66, 869,071.12 and 343,281.75 is: 473,728.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,761.66 : 869,071.12 = 343,281.75 : x
  2. Step 2: Convert to fraction form
    629,761.66/869,071.12 = 343,281.75/x
  3. Step 3: Cross multiply
    629,761.66x = 869,071.12 × 343,281.75
  4. Step 4: Simplify right side
    629,761.66x = 298,336,250,830.84
  5. Step 5: Solve for x
    x = 298,336,250,830.84/629,761.66
  6. Step 6: Final answer
    x = 473,728.83

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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.