Home / 815,540.40-1,223,310.60-803,730.60

Finding the Fourth Proportional to 815,540.40, 1,223,310.60 and 803,730.60

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Solution

The fourth proportional to 815,540.40, 1,223,310.60 and 803,730.60 is: 1,205,595.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,540.40 : 1,223,310.60 = 803,730.60 : x
  2. Step 2: Convert to fraction form
    815,540.40/1,223,310.60 = 803,730.60/x
  3. Step 3: Cross multiply
    815,540.40x = 1,223,310.60 × 803,730.60
  4. Step 4: Simplify right side
    815,540.40x = 983,212,162,524.36
  5. Step 5: Solve for x
    x = 983,212,162,524.36/815,540.40
  6. Step 6: Final answer
    x = 1,205,595.90

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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.