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Finding the Fourth Proportional to 647,859.20, 972,226.20 and 363,549.20

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Solution

The fourth proportional to 647,859.20, 972,226.20 and 363,549.20 is: 545,569.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,859.20 : 972,226.20 = 363,549.20 : x
  2. Step 2: Convert to fraction form
    647,859.20/972,226.20 = 363,549.20/x
  3. Step 3: Cross multiply
    647,859.20x = 972,226.20 × 363,549.20
  4. Step 4: Simplify right side
    647,859.20x = 353,452,057,229.04
  5. Step 5: Solve for x
    x = 353,452,057,229.04/647,859.20
  6. Step 6: Final answer
    x = 545,569.25

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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.