Home / 428,690.20-591,563.64-237,696.52

Finding the Fourth Proportional to 428,690.20, 591,563.64 and 237,696.52

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Solution

The fourth proportional to 428,690.20, 591,563.64 and 237,696.52 is: 328,005.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,690.20 : 591,563.64 = 237,696.52 : x
  2. Step 2: Convert to fraction form
    428,690.20/591,563.64 = 237,696.52/x
  3. Step 3: Cross multiply
    428,690.20x = 591,563.64 × 237,696.52
  4. Step 4: Simplify right side
    428,690.20x = 140,612,618,586.53
  5. Step 5: Solve for x
    x = 140,612,618,586.53/428,690.20
  6. Step 6: Final answer
    x = 328,005.21

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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.