Home / 812,952.77-1,219,044.35-300,449.81

Finding the Fourth Proportional to 812,952.77, 1,219,044.35 and 300,449.81

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Solution

The fourth proportional to 812,952.77, 1,219,044.35 and 300,449.81 is: 450,532.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,952.77 : 1,219,044.35 = 300,449.81 : x
  2. Step 2: Convert to fraction form
    812,952.77/1,219,044.35 = 300,449.81/x
  3. Step 3: Cross multiply
    812,952.77x = 1,219,044.35 × 300,449.81
  4. Step 4: Simplify right side
    812,952.77x = 366,261,647,137.81
  5. Step 5: Solve for x
    x = 366,261,647,137.81/812,952.77
  6. Step 6: Final answer
    x = 450,532.51

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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.