Home / 1,309,335.54-1,806,612.21-765,366.09

Finding the Fourth Proportional to 1,309,335.54, 1,806,612.21 and 765,366.09

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Solution

The fourth proportional to 1,309,335.54, 1,806,612.21 and 765,366.09 is: 1,056,046.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,335.54 : 1,806,612.21 = 765,366.09 : x
  2. Step 2: Convert to fraction form
    1,309,335.54/1,806,612.21 = 765,366.09/x
  3. Step 3: Cross multiply
    1,309,335.54x = 1,806,612.21 × 765,366.09
  4. Step 4: Simplify right side
    1,309,335.54x = 1,382,719,723,313.96
  5. Step 5: Solve for x
    x = 1,382,719,723,313.96/1,309,335.54
  6. Step 6: Final answer
    x = 1,056,046.89

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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.