Home / 819,010.80-1,230,359.40-787,676.40

Finding the Fourth Proportional to 819,010.80, 1,230,359.40 and 787,676.40

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Solution

The fourth proportional to 819,010.80, 1,230,359.40 and 787,676.40 is: 1,183,287.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,010.80 : 1,230,359.40 = 787,676.40 : x
  2. Step 2: Convert to fraction form
    819,010.80/1,230,359.40 = 787,676.40/x
  3. Step 3: Cross multiply
    819,010.80x = 1,230,359.40 × 787,676.40
  4. Step 4: Simplify right side
    819,010.80x = 969,125,062,898.16
  5. Step 5: Solve for x
    x = 969,125,062,898.16/819,010.80
  6. Step 6: Final answer
    x = 1,183,287.28

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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.