Home / 815,734.60-1,223,601.90-809,829.70

Finding the Fourth Proportional to 815,734.60, 1,223,601.90 and 809,829.70

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Solution

The fourth proportional to 815,734.60, 1,223,601.90 and 809,829.70 is: 1,214,744.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,734.60 : 1,223,601.90 = 809,829.70 : x
  2. Step 2: Convert to fraction form
    815,734.60/1,223,601.90 = 809,829.70/x
  3. Step 3: Cross multiply
    815,734.60x = 1,223,601.90 × 809,829.70
  4. Step 4: Simplify right side
    815,734.60x = 990,909,159,596.43
  5. Step 5: Solve for x
    x = 990,909,159,596.43/815,734.60
  6. Step 6: Final answer
    x = 1,214,744.55

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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.