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Finding the Fourth Proportional to 422,642.04, 583,305.81 and 261,548.97

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Solution

The fourth proportional to 422,642.04, 583,305.81 and 261,548.97 is: 360,974.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,642.04 : 583,305.81 = 261,548.97 : x
  2. Step 2: Convert to fraction form
    422,642.04/583,305.81 = 261,548.97/x
  3. Step 3: Cross multiply
    422,642.04x = 583,305.81 × 261,548.97
  4. Step 4: Simplify right side
    422,642.04x = 152,563,033,800.52
  5. Step 5: Solve for x
    x = 152,563,033,800.52/422,642.04
  6. Step 6: Final answer
    x = 360,974.58

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1.5x scale

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.