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Finding the Fourth Proportional to 806,601.20, 1,209,901.80 and 245,634.80

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Solution

The fourth proportional to 806,601.20, 1,209,901.80 and 245,634.80 is: 368,452.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,601.20 : 1,209,901.80 = 245,634.80 : x
  2. Step 2: Convert to fraction form
    806,601.20/1,209,901.80 = 245,634.80/x
  3. Step 3: Cross multiply
    806,601.20x = 1,209,901.80 × 245,634.80
  4. Step 4: Simplify right side
    806,601.20x = 297,193,986,662.64
  5. Step 5: Solve for x
    x = 297,193,986,662.64/806,601.20
  6. Step 6: Final answer
    x = 368,452.20

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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.