Home / 685,436.16-1,027,988.64-264,443.52

Finding the Fourth Proportional to 685,436.16, 1,027,988.64 and 264,443.52

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Solution

The fourth proportional to 685,436.16, 1,027,988.64 and 264,443.52 is: 396,601.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,436.16 : 1,027,988.64 = 264,443.52 : x
  2. Step 2: Convert to fraction form
    685,436.16/1,027,988.64 = 264,443.52/x
  3. Step 3: Cross multiply
    685,436.16x = 1,027,988.64 × 264,443.52
  4. Step 4: Simplify right side
    685,436.16x = 271,844,934,481.61
  5. Step 5: Solve for x
    x = 271,844,934,481.61/685,436.16
  6. Step 6: Final answer
    x = 396,601.39

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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.