Home / 1,313,621.70-1,970,432.55-864,849.30

Finding the Fourth Proportional to 1,313,621.70, 1,970,432.55 and 864,849.30

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Solution

The fourth proportional to 1,313,621.70, 1,970,432.55 and 864,849.30 is: 1,297,273.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,313,621.70 : 1,970,432.55 = 864,849.30 : x
  2. Step 2: Convert to fraction form
    1,313,621.70/1,970,432.55 = 864,849.30/x
  3. Step 3: Cross multiply
    1,313,621.70x = 1,970,432.55 × 864,849.30
  4. Step 4: Simplify right side
    1,313,621.70x = 1,704,127,211,564.72
  5. Step 5: Solve for x
    x = 1,704,127,211,564.72/1,313,621.70
  6. Step 6: Final answer
    x = 1,297,273.95

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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.