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Finding the Fourth Proportional to 653,641.06, 980,462.36 and 204,364.30

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Solution

The fourth proportional to 653,641.06, 980,462.36 and 204,364.30 is: 306,546.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,641.06 : 980,462.36 = 204,364.30 : x
  2. Step 2: Convert to fraction form
    653,641.06/980,462.36 = 204,364.30/x
  3. Step 3: Cross multiply
    653,641.06x = 980,462.36 × 204,364.30
  4. Step 4: Simplify right side
    653,641.06x = 200,371,503,877.75
  5. Step 5: Solve for x
    x = 200,371,503,877.75/653,641.06
  6. Step 6: Final answer
    x = 306,546.69

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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.