Home / 422,769.08-583,421.20-231,778.36

Finding the Fourth Proportional to 422,769.08, 583,421.20 and 231,778.36

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Solution

The fourth proportional to 422,769.08, 583,421.20 and 231,778.36 is: 319,854.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,769.08 : 583,421.20 = 231,778.36 : x
  2. Step 2: Convert to fraction form
    422,769.08/583,421.20 = 231,778.36/x
  3. Step 3: Cross multiply
    422,769.08x = 583,421.20 × 231,778.36
  4. Step 4: Simplify right side
    422,769.08x = 135,224,408,925.23
  5. Step 5: Solve for x
    x = 135,224,408,925.23/422,769.08
  6. Step 6: Final answer
    x = 319,854.07

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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.