Home / 1,238,034.69-1,708,330.04-721,659.39

Finding the Fourth Proportional to 1,238,034.69, 1,708,330.04 and 721,659.39

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Solution

The fourth proportional to 1,238,034.69, 1,708,330.04 and 721,659.39 is: 995,797.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,034.69 : 1,708,330.04 = 721,659.39 : x
  2. Step 2: Convert to fraction form
    1,238,034.69/1,708,330.04 = 721,659.39/x
  3. Step 3: Cross multiply
    1,238,034.69x = 1,708,330.04 × 721,659.39
  4. Step 4: Simplify right side
    1,238,034.69x = 1,232,832,410,976.78
  5. Step 5: Solve for x
    x = 1,232,832,410,976.78/1,238,034.69
  6. Step 6: Final answer
    x = 995,797.95

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Double scale
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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.