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Finding the Fourth Proportional to 629,535.65, 868,759.22 and 343,055.66

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Solution

The fourth proportional to 629,535.65, 868,759.22 and 343,055.66 is: 473,416.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,535.65 : 868,759.22 = 343,055.66 : x
  2. Step 2: Convert to fraction form
    629,535.65/868,759.22 = 343,055.66/x
  3. Step 3: Cross multiply
    629,535.65x = 868,759.22 × 343,055.66
  4. Step 4: Simplify right side
    629,535.65x = 298,032,764,112.03
  5. Step 5: Solve for x
    x = 298,032,764,112.03/629,535.65
  6. Step 6: Final answer
    x = 473,416.82

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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.