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Finding the Fourth Proportional to 1,275,295, 1,759,907.28 and 702,334.12

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Solution

The fourth proportional to 1,275,295, 1,759,907.28 and 702,334.12 is: 969,221.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,295 : 1,759,907.28 = 702,334.12 : x
  2. Step 2: Convert to fraction form
    1,275,295/1,759,907.28 = 702,334.12/x
  3. Step 3: Cross multiply
    1,275,295x = 1,759,907.28 × 702,334.12
  4. Step 4: Simplify right side
    1,275,295x = 1,236,042,930,780.39
  5. Step 5: Solve for x
    x = 1,236,042,930,780.39/1,275,295
  6. Step 6: Final answer
    x = 969,221.18

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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.