Home / 691,922.20-1,037,915.70-218,644.60

Finding the Fourth Proportional to 691,922.20, 1,037,915.70 and 218,644.60

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Solution

The fourth proportional to 691,922.20, 1,037,915.70 and 218,644.60 is: 327,977.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,922.20 : 1,037,915.70 = 218,644.60 : x
  2. Step 2: Convert to fraction form
    691,922.20/1,037,915.70 = 218,644.60/x
  3. Step 3: Cross multiply
    691,922.20x = 1,037,915.70 × 218,644.60
  4. Step 4: Simplify right side
    691,922.20x = 226,934,663,060.22
  5. Step 5: Solve for x
    x = 226,934,663,060.22/691,922.20
  6. Step 6: Final answer
    x = 327,977.14

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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.