Home / 814,990.30-1,222,485.42-309,550.02

Finding the Fourth Proportional to 814,990.30, 1,222,485.42 and 309,550.02

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Solution

The fourth proportional to 814,990.30, 1,222,485.42 and 309,550.02 is: 464,325.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,990.30 : 1,222,485.42 = 309,550.02 : x
  2. Step 2: Convert to fraction form
    814,990.30/1,222,485.42 = 309,550.02/x
  3. Step 3: Cross multiply
    814,990.30x = 1,222,485.42 × 309,550.02
  4. Step 4: Simplify right side
    814,990.30x = 378,420,386,210.71
  5. Step 5: Solve for x
    x = 378,420,386,210.71/814,990.30
  6. Step 6: Final answer
    x = 464,325.02

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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.