Home / 1,313,280.60-1,969,920.90-890,266.20

Finding the Fourth Proportional to 1,313,280.60, 1,969,920.90 and 890,266.20

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Solution

The fourth proportional to 1,313,280.60, 1,969,920.90 and 890,266.20 is: 1,335,399.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,280.60 : 1,969,920.90 = 890,266.20 : x
  2. Step 2: Convert to fraction form
    1,313,280.60/1,969,920.90 = 890,266.20/x
  3. Step 3: Cross multiply
    1,313,280.60x = 1,969,920.90 × 890,266.20
  4. Step 4: Simplify right side
    1,313,280.60x = 1,753,753,993,943.58
  5. Step 5: Solve for x
    x = 1,753,753,993,943.58/1,313,280.60
  6. Step 6: Final answer
    x = 1,335,399.30

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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.