Home / 1,188,209.40-1,782,314.10-548,511.90

Finding the Fourth Proportional to 1,188,209.40, 1,782,314.10 and 548,511.90

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Solution

The fourth proportional to 1,188,209.40, 1,782,314.10 and 548,511.90 is: 822,767.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,209.40 : 1,782,314.10 = 548,511.90 : x
  2. Step 2: Convert to fraction form
    1,188,209.40/1,782,314.10 = 548,511.90/x
  3. Step 3: Cross multiply
    1,188,209.40x = 1,782,314.10 × 548,511.90
  4. Step 4: Simplify right side
    1,188,209.40x = 977,620,493,387.79
  5. Step 5: Solve for x
    x = 977,620,493,387.79/1,188,209.40
  6. Step 6: Final answer
    x = 822,767.85

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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.