Home / 691,878.10-1,037,719.95-218,611.30

Finding the Fourth Proportional to 691,878.10, 1,037,719.95 and 218,611.30

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Solution

The fourth proportional to 691,878.10, 1,037,719.95 and 218,611.30 is: 327,886.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,878.10 : 1,037,719.95 = 218,611.30 : x
  2. Step 2: Convert to fraction form
    691,878.10/1,037,719.95 = 218,611.30/x
  3. Step 3: Cross multiply
    691,878.10x = 1,037,719.95 × 218,611.30
  4. Step 4: Simplify right side
    691,878.10x = 226,857,307,305.44
  5. Step 5: Solve for x
    x = 226,857,307,305.44/691,878.10
  6. Step 6: Final answer
    x = 327,886.24

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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.