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Finding the Fourth Proportional to 652,170.20, 978,255.30 and 577,374.80

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Solution

The fourth proportional to 652,170.20, 978,255.30 and 577,374.80 is: 866,062.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,170.20 : 978,255.30 = 577,374.80 : x
  2. Step 2: Convert to fraction form
    652,170.20/978,255.30 = 577,374.80/x
  3. Step 3: Cross multiply
    652,170.20x = 978,255.30 × 577,374.80
  4. Step 4: Simplify right side
    652,170.20x = 564,819,958,186.44
  5. Step 5: Solve for x
    x = 564,819,958,186.44/652,170.20
  6. Step 6: Final answer
    x = 866,062.20

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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.