Home / 981,513.58-1,471,220.60-448,235.50

Finding the Fourth Proportional to 981,513.58, 1,471,220.60 and 448,235.50

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Solution

The fourth proportional to 981,513.58, 1,471,220.60 and 448,235.50 is: 671,873.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    981,513.58 : 1,471,220.60 = 448,235.50 : x
  2. Step 2: Convert to fraction form
    981,513.58/1,471,220.60 = 448,235.50/x
  3. Step 3: Cross multiply
    981,513.58x = 1,471,220.60 × 448,235.50
  4. Step 4: Simplify right side
    981,513.58x = 659,453,301,251.30
  5. Step 5: Solve for x
    x = 659,453,301,251.30/981,513.58
  6. Step 6: Final answer
    x = 671,873.84

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Double scale
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Similar ratio
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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.