Home / 428,788.95-591,650.52-247,434.72

Finding the Fourth Proportional to 428,788.95, 591,650.52 and 247,434.72

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Solution

The fourth proportional to 428,788.95, 591,650.52 and 247,434.72 is: 341,414.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,788.95 : 591,650.52 = 247,434.72 : x
  2. Step 2: Convert to fraction form
    428,788.95/591,650.52 = 247,434.72/x
  3. Step 3: Cross multiply
    428,788.95x = 591,650.52 × 247,434.72
  4. Step 4: Simplify right side
    428,788.95x = 146,394,880,754.05
  5. Step 5: Solve for x
    x = 146,394,880,754.05/428,788.95
  6. Step 6: Final answer
    x = 341,414.77

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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.