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Finding the Fourth Proportional to 403,690.40, 605,535.60 and 377,446.40

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Solution

The fourth proportional to 403,690.40, 605,535.60 and 377,446.40 is: 566,169.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,690.40 : 605,535.60 = 377,446.40 : x
  2. Step 2: Convert to fraction form
    403,690.40/605,535.60 = 377,446.40/x
  3. Step 3: Cross multiply
    403,690.40x = 605,535.60 × 377,446.40
  4. Step 4: Simplify right side
    403,690.40x = 228,557,232,291.84
  5. Step 5: Solve for x
    x = 228,557,232,291.84/403,690.40
  6. Step 6: Final answer
    x = 566,169.60

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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.