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Finding the Fourth Proportional to 403,862.70, 605,794.05 and 401,097.90

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Solution

The fourth proportional to 403,862.70, 605,794.05 and 401,097.90 is: 601,646.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,862.70 : 605,794.05 = 401,097.90 : x
  2. Step 2: Convert to fraction form
    403,862.70/605,794.05 = 401,097.90/x
  3. Step 3: Cross multiply
    403,862.70x = 605,794.05 × 401,097.90
  4. Step 4: Simplify right side
    403,862.70x = 242,982,721,287.50
  5. Step 5: Solve for x
    x = 242,982,721,287.50/403,862.70
  6. Step 6: Final answer
    x = 601,646.85

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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.