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Finding the Fourth Proportional to 422,651.04, 583,318.24 and 261,558

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Solution

The fourth proportional to 422,651.04, 583,318.24 and 261,558 is: 360,987.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,651.04 : 583,318.24 = 261,558 : x
  2. Step 2: Convert to fraction form
    422,651.04/583,318.24 = 261,558/x
  3. Step 3: Cross multiply
    422,651.04x = 583,318.24 × 261,558
  4. Step 4: Simplify right side
    422,651.04x = 152,571,552,217.92
  5. Step 5: Solve for x
    x = 152,571,552,217.92/422,651.04
  6. Step 6: Final answer
    x = 360,987.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.