Home / 691,982.70-1,037,779.65-218,813.10

Finding the Fourth Proportional to 691,982.70, 1,037,779.65 and 218,813.10

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Solution

The fourth proportional to 691,982.70, 1,037,779.65 and 218,813.10 is: 328,158.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,982.70 : 1,037,779.65 = 218,813.10 : x
  2. Step 2: Convert to fraction form
    691,982.70/1,037,779.65 = 218,813.10/x
  3. Step 3: Cross multiply
    691,982.70x = 1,037,779.65 × 218,813.10
  4. Step 4: Simplify right side
    691,982.70x = 227,079,782,333.42
  5. Step 5: Solve for x
    x = 227,079,782,333.42/691,982.70
  6. Step 6: Final answer
    x = 328,158.18

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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.