Home / 1,206,904.20-1,810,356.30-787,000.20

Finding the Fourth Proportional to 1,206,904.20, 1,810,356.30 and 787,000.20

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Solution

The fourth proportional to 1,206,904.20, 1,810,356.30 and 787,000.20 is: 1,180,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,904.20 : 1,810,356.30 = 787,000.20 : x
  2. Step 2: Convert to fraction form
    1,206,904.20/1,810,356.30 = 787,000.20/x
  3. Step 3: Cross multiply
    1,206,904.20x = 1,810,356.30 × 787,000.20
  4. Step 4: Simplify right side
    1,206,904.20x = 1,424,750,770,171.26
  5. Step 5: Solve for x
    x = 1,424,750,770,171.26/1,206,904.20
  6. Step 6: Final answer
    x = 1,180,500.30

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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.