Home / 809,260.28-1,116,612.48-465,029.72

Finding the Fourth Proportional to 809,260.28, 1,116,612.48 and 465,029.72

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Solution

The fourth proportional to 809,260.28, 1,116,612.48 and 465,029.72 is: 641,645.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,260.28 : 1,116,612.48 = 465,029.72 : x
  2. Step 2: Convert to fraction form
    809,260.28/1,116,612.48 = 465,029.72/x
  3. Step 3: Cross multiply
    809,260.28x = 1,116,612.48 × 465,029.72
  4. Step 4: Simplify right side
    809,260.28x = 519,257,988,922.91
  5. Step 5: Solve for x
    x = 519,257,988,922.91/809,260.28
  6. Step 6: Final answer
    x = 641,645.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.