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Finding the Fourth Proportional to 448,098.60, 672,147.90 and 403,775.40

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Solution

The fourth proportional to 448,098.60, 672,147.90 and 403,775.40 is: 605,663.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,098.60 : 672,147.90 = 403,775.40 : x
  2. Step 2: Convert to fraction form
    448,098.60/672,147.90 = 403,775.40/x
  3. Step 3: Cross multiply
    448,098.60x = 672,147.90 × 403,775.40
  4. Step 4: Simplify right side
    448,098.60x = 271,396,787,181.66
  5. Step 5: Solve for x
    x = 271,396,787,181.66/448,098.60
  6. Step 6: Final answer
    x = 605,663.10

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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.