Home / 691,969.20-1,037,759.40-218,799.60

Finding the Fourth Proportional to 691,969.20, 1,037,759.40 and 218,799.60

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Solution

The fourth proportional to 691,969.20, 1,037,759.40 and 218,799.60 is: 328,137.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,969.20 : 1,037,759.40 = 218,799.60 : x
  2. Step 2: Convert to fraction form
    691,969.20/1,037,759.40 = 218,799.60/x
  3. Step 3: Cross multiply
    691,969.20x = 1,037,759.40 × 218,799.60
  4. Step 4: Simplify right side
    691,969.20x = 227,061,341,616.24
  5. Step 5: Solve for x
    x = 227,061,341,616.24/691,969.20
  6. Step 6: Final answer
    x = 328,137.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.