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Finding the Fourth Proportional to 869,561.61, 1,304,350.82 and 329,672.70

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Solution

The fourth proportional to 869,561.61, 1,304,350.82 and 329,672.70 is: 494,512.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,561.61 : 1,304,350.82 = 329,672.70 : x
  2. Step 2: Convert to fraction form
    869,561.61/1,304,350.82 = 329,672.70/x
  3. Step 3: Cross multiply
    869,561.61x = 1,304,350.82 × 329,672.70
  4. Step 4: Simplify right side
    869,561.61x = 430,008,856,164.52
  5. Step 5: Solve for x
    x = 430,008,856,164.52/869,561.61
  6. Step 6: Final answer
    x = 494,512.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.