Home / 815,818.80-1,223,728.20-532,383.60

Finding the Fourth Proportional to 815,818.80, 1,223,728.20 and 532,383.60

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Solution

The fourth proportional to 815,818.80, 1,223,728.20 and 532,383.60 is: 798,575.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,818.80 : 1,223,728.20 = 532,383.60 : x
  2. Step 2: Convert to fraction form
    815,818.80/1,223,728.20 = 532,383.60/x
  3. Step 3: Cross multiply
    815,818.80x = 1,223,728.20 × 532,383.60
  4. Step 4: Simplify right side
    815,818.80x = 651,492,824,537.52
  5. Step 5: Solve for x
    x = 651,492,824,537.52/815,818.80
  6. Step 6: Final answer
    x = 798,575.40

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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.