Home / 428,788.60-591,764.61-237,863.50

Finding the Fourth Proportional to 428,788.60, 591,764.61 and 237,863.50

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Solution

The fourth proportional to 428,788.60, 591,764.61 and 237,863.50 is: 328,271.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,788.60 : 591,764.61 = 237,863.50 : x
  2. Step 2: Convert to fraction form
    428,788.60/591,764.61 = 237,863.50/x
  3. Step 3: Cross multiply
    428,788.60x = 591,764.61 × 237,863.50
  4. Step 4: Simplify right side
    428,788.60x = 140,759,201,310.74
  5. Step 5: Solve for x
    x = 140,759,201,310.74/428,788.60
  6. Step 6: Final answer
    x = 328,271.79

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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.