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Finding the Fourth Proportional to 849,481.12, 1,172,020.08 and 481,897.90

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Solution

The fourth proportional to 849,481.12, 1,172,020.08 and 481,897.90 is: 664,869.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,481.12 : 1,172,020.08 = 481,897.90 : x
  2. Step 2: Convert to fraction form
    849,481.12/1,172,020.08 = 481,897.90/x
  3. Step 3: Cross multiply
    849,481.12x = 1,172,020.08 × 481,897.90
  4. Step 4: Simplify right side
    849,481.12x = 564,794,015,309.83
  5. Step 5: Solve for x
    x = 564,794,015,309.83/849,481.12
  6. Step 6: Final answer
    x = 664,869.42

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1.5x scale

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.