Home / 422,916.75-583,632.59-231,928.47

Finding the Fourth Proportional to 422,916.75, 583,632.59 and 231,928.47

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Solution

The fourth proportional to 422,916.75, 583,632.59 and 231,928.47 is: 320,065.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,916.75 : 583,632.59 = 231,928.47 : x
  2. Step 2: Convert to fraction form
    422,916.75/583,632.59 = 231,928.47/x
  3. Step 3: Cross multiply
    422,916.75x = 583,632.59 × 231,928.47
  4. Step 4: Simplify right side
    422,916.75x = 135,361,011,302.50
  5. Step 5: Solve for x
    x = 135,361,011,302.50/422,916.75
  6. Step 6: Final answer
    x = 320,065.39

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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.