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Finding the Fourth Proportional to 579,679.80, 869,951.70 and 299,052.60

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Solution

The fourth proportional to 579,679.80, 869,951.70 and 299,052.60 is: 448,801.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,679.80 : 869,951.70 = 299,052.60 : x
  2. Step 2: Convert to fraction form
    579,679.80/869,951.70 = 299,052.60/x
  3. Step 3: Cross multiply
    579,679.80x = 869,951.70 × 299,052.60
  4. Step 4: Simplify right side
    579,679.80x = 260,161,317,759.42
  5. Step 5: Solve for x
    x = 260,161,317,759.42/579,679.80
  6. Step 6: Final answer
    x = 448,801.77

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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.