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Finding the Fourth Proportional to 615,517.90, 849,556.38 and 360,951.10

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Solution

The fourth proportional to 615,517.90, 849,556.38 and 360,951.10 is: 498,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,517.90 : 849,556.38 = 360,951.10 : x
  2. Step 2: Convert to fraction form
    615,517.90/849,556.38 = 360,951.10/x
  3. Step 3: Cross multiply
    615,517.90x = 849,556.38 × 360,951.10
  4. Step 4: Simplify right side
    615,517.90x = 306,648,309,873.02
  5. Step 5: Solve for x
    x = 306,648,309,873.02/615,517.90
  6. Step 6: Final answer
    x = 498,195.60

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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.