Home / 815,613.15-1,221,000.53-606,179.55

Finding the Fourth Proportional to 815,613.15, 1,221,000.53 and 606,179.55

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Solution

The fourth proportional to 815,613.15, 1,221,000.53 and 606,179.55 is: 907,471.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,613.15 : 1,221,000.53 = 606,179.55 : x
  2. Step 2: Convert to fraction form
    815,613.15/1,221,000.53 = 606,179.55/x
  3. Step 3: Cross multiply
    815,613.15x = 1,221,000.53 × 606,179.55
  4. Step 4: Simplify right side
    815,613.15x = 740,145,548,794.26
  5. Step 5: Solve for x
    x = 740,145,548,794.26/815,613.15
  6. Step 6: Final answer
    x = 907,471.33

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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.