Home / 786,272.20-1,179,409.82-217,654.97

Finding the Fourth Proportional to 786,272.20, 1,179,409.82 and 217,654.97

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Solution

The fourth proportional to 786,272.20, 1,179,409.82 and 217,654.97 is: 326,482.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,272.20 : 1,179,409.82 = 217,654.97 : x
  2. Step 2: Convert to fraction form
    786,272.20/1,179,409.82 = 217,654.97/x
  3. Step 3: Cross multiply
    786,272.20x = 1,179,409.82 × 217,654.97
  4. Step 4: Simplify right side
    786,272.20x = 256,704,402,004.48
  5. Step 5: Solve for x
    x = 256,704,402,004.48/786,272.20
  6. Step 6: Final answer
    x = 326,482.87

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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.