Home / 815,044.20-1,222,566.30-809,795.40

Finding the Fourth Proportional to 815,044.20, 1,222,566.30 and 809,795.40

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Solution

The fourth proportional to 815,044.20, 1,222,566.30 and 809,795.40 is: 1,214,693.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,044.20 : 1,222,566.30 = 809,795.40 : x
  2. Step 2: Convert to fraction form
    815,044.20/1,222,566.30 = 809,795.40/x
  3. Step 3: Cross multiply
    815,044.20x = 1,222,566.30 × 809,795.40
  4. Step 4: Simplify right side
    815,044.20x = 990,028,565,935.02
  5. Step 5: Solve for x
    x = 990,028,565,935.02/815,044.20
  6. Step 6: Final answer
    x = 1,214,693.10

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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.