Home / 930,743.68-1,396,339.90-323,443.76

Finding the Fourth Proportional to 930,743.68, 1,396,339.90 and 323,443.76

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Solution

The fourth proportional to 930,743.68, 1,396,339.90 and 323,443.76 is: 485,243.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,743.68 : 1,396,339.90 = 323,443.76 : x
  2. Step 2: Convert to fraction form
    930,743.68/1,396,339.90 = 323,443.76/x
  3. Step 3: Cross multiply
    930,743.68x = 1,396,339.90 × 323,443.76
  4. Step 4: Simplify right side
    930,743.68x = 451,637,427,494.02
  5. Step 5: Solve for x
    x = 451,637,427,494.02/930,743.68
  6. Step 6: Final answer
    x = 485,243.61

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Double scale
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1.5x scale

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.