Home / 807,834.60-1,211,751.90-386,893.80

Finding the Fourth Proportional to 807,834.60, 1,211,751.90 and 386,893.80

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Solution

The fourth proportional to 807,834.60, 1,211,751.90 and 386,893.80 is: 580,340.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,834.60 : 1,211,751.90 = 386,893.80 : x
  2. Step 2: Convert to fraction form
    807,834.60/1,211,751.90 = 386,893.80/x
  3. Step 3: Cross multiply
    807,834.60x = 1,211,751.90 × 386,893.80
  4. Step 4: Simplify right side
    807,834.60x = 468,819,297,248.22
  5. Step 5: Solve for x
    x = 468,819,297,248.22/807,834.60
  6. Step 6: Final answer
    x = 580,340.70

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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.