Home / 827,117.80-1,240,676.70-228,171.40

Finding the Fourth Proportional to 827,117.80, 1,240,676.70 and 228,171.40

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Solution

The fourth proportional to 827,117.80, 1,240,676.70 and 228,171.40 is: 342,257.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,117.80 : 1,240,676.70 = 228,171.40 : x
  2. Step 2: Convert to fraction form
    827,117.80/1,240,676.70 = 228,171.40/x
  3. Step 3: Cross multiply
    827,117.80x = 1,240,676.70 × 228,171.40
  4. Step 4: Simplify right side
    827,117.80x = 283,086,939,586.38
  5. Step 5: Solve for x
    x = 283,086,939,586.38/827,117.80
  6. Step 6: Final answer
    x = 342,257.10

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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.