Home / 643,734.20-965,774.10-574,095.80

Finding the Fourth Proportional to 643,734.20, 965,774.10 and 574,095.80

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Solution

The fourth proportional to 643,734.20, 965,774.10 and 574,095.80 is: 861,297.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,734.20 : 965,774.10 = 574,095.80 : x
  2. Step 2: Convert to fraction form
    643,734.20/965,774.10 = 574,095.80/x
  3. Step 3: Cross multiply
    643,734.20x = 965,774.10 × 574,095.80
  4. Step 4: Simplify right side
    643,734.20x = 554,446,854,558.78
  5. Step 5: Solve for x
    x = 554,446,854,558.78/643,734.20
  6. Step 6: Final answer
    x = 861,297.81

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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.