Home / 815,742.20-1,223,613.30-695,019.80

Finding the Fourth Proportional to 815,742.20, 1,223,613.30 and 695,019.80

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Solution

The fourth proportional to 815,742.20, 1,223,613.30 and 695,019.80 is: 1,042,529.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,742.20 : 1,223,613.30 = 695,019.80 : x
  2. Step 2: Convert to fraction form
    815,742.20/1,223,613.30 = 695,019.80/x
  3. Step 3: Cross multiply
    815,742.20x = 1,223,613.30 × 695,019.80
  4. Step 4: Simplify right side
    815,742.20x = 850,435,471,043.34
  5. Step 5: Solve for x
    x = 850,435,471,043.34/815,742.20
  6. Step 6: Final answer
    x = 1,042,529.70

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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.