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Finding the Fourth Proportional to 577,626.39, 866,442.02 and 379,202.31

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Solution

The fourth proportional to 577,626.39, 866,442.02 and 379,202.31 is: 568,805.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,626.39 : 866,442.02 = 379,202.31 : x
  2. Step 2: Convert to fraction form
    577,626.39/866,442.02 = 379,202.31/x
  3. Step 3: Cross multiply
    577,626.39x = 866,442.02 × 379,202.31
  4. Step 4: Simplify right side
    577,626.39x = 328,556,813,569.06
  5. Step 5: Solve for x
    x = 328,556,813,569.06/577,626.39
  6. Step 6: Final answer
    x = 568,805.06

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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.