Home / 819,747.40-1,229,621.10-766,870.60

Finding the Fourth Proportional to 819,747.40, 1,229,621.10 and 766,870.60

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Solution

The fourth proportional to 819,747.40, 1,229,621.10 and 766,870.60 is: 1,150,305.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,747.40 : 1,229,621.10 = 766,870.60 : x
  2. Step 2: Convert to fraction form
    819,747.40/1,229,621.10 = 766,870.60/x
  3. Step 3: Cross multiply
    819,747.40x = 1,229,621.10 × 766,870.60
  4. Step 4: Simplify right side
    819,747.40x = 942,960,270,729.66
  5. Step 5: Solve for x
    x = 942,960,270,729.66/819,747.40
  6. Step 6: Final answer
    x = 1,150,305.90

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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.