Home / 815,820.60-1,223,730.90-629,196.60

Finding the Fourth Proportional to 815,820.60, 1,223,730.90 and 629,196.60

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Solution

The fourth proportional to 815,820.60, 1,223,730.90 and 629,196.60 is: 943,794.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,820.60 : 1,223,730.90 = 629,196.60 : x
  2. Step 2: Convert to fraction form
    815,820.60/1,223,730.90 = 629,196.60/x
  3. Step 3: Cross multiply
    815,820.60x = 1,223,730.90 × 629,196.60
  4. Step 4: Simplify right side
    815,820.60x = 769,967,321,594.94
  5. Step 5: Solve for x
    x = 769,967,321,594.94/815,820.60
  6. Step 6: Final answer
    x = 943,794.90

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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.