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Finding the Fourth Proportional to 664,448.10, 996,817.95 and 327,650.10

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Solution

The fourth proportional to 664,448.10, 996,817.95 and 327,650.10 is: 491,547.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,448.10 : 996,817.95 = 327,650.10 : x
  2. Step 2: Convert to fraction form
    664,448.10/996,817.95 = 327,650.10/x
  3. Step 3: Cross multiply
    664,448.10x = 996,817.95 × 327,650.10
  4. Step 4: Simplify right side
    664,448.10x = 326,607,500,999.30
  5. Step 5: Solve for x
    x = 326,607,500,999.30/664,448.10
  6. Step 6: Final answer
    x = 491,547.05

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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.