Home / 815,723.20-1,223,584.80-616,657.60

Finding the Fourth Proportional to 815,723.20, 1,223,584.80 and 616,657.60

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Solution

The fourth proportional to 815,723.20, 1,223,584.80 and 616,657.60 is: 924,986.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,723.20 : 1,223,584.80 = 616,657.60 : x
  2. Step 2: Convert to fraction form
    815,723.20/1,223,584.80 = 616,657.60/x
  3. Step 3: Cross multiply
    815,723.20x = 1,223,584.80 × 616,657.60
  4. Step 4: Simplify right side
    815,723.20x = 754,532,866,164.48
  5. Step 5: Solve for x
    x = 754,532,866,164.48/815,723.20
  6. Step 6: Final answer
    x = 924,986.40

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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.