Home / 809,735.20-1,215,121.20-472,775.20

Finding the Fourth Proportional to 809,735.20, 1,215,121.20 and 472,775.20

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Solution

The fourth proportional to 809,735.20, 1,215,121.20 and 472,775.20 is: 709,465.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,735.20 : 1,215,121.20 = 472,775.20 : x
  2. Step 2: Convert to fraction form
    809,735.20/1,215,121.20 = 472,775.20/x
  3. Step 3: Cross multiply
    809,735.20x = 1,215,121.20 × 472,775.20
  4. Step 4: Simplify right side
    809,735.20x = 574,479,168,354.24
  5. Step 5: Solve for x
    x = 574,479,168,354.24/809,735.20
  6. Step 6: Final answer
    x = 709,465.48

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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.