Home / 643,949.70-966,097.35-574,311.30

Finding the Fourth Proportional to 643,949.70, 966,097.35 and 574,311.30

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Solution

The fourth proportional to 643,949.70, 966,097.35 and 574,311.30 is: 861,621.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,949.70 : 966,097.35 = 574,311.30 : x
  2. Step 2: Convert to fraction form
    643,949.70/966,097.35 = 574,311.30/x
  3. Step 3: Cross multiply
    643,949.70x = 966,097.35 × 574,311.30
  4. Step 4: Simplify right side
    643,949.70x = 554,840,625,005.06
  5. Step 5: Solve for x
    x = 554,840,625,005.06/643,949.70
  6. Step 6: Final answer
    x = 861,621.06

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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.