Home / 686,715.96-1,030,132.50-188,080.44

Finding the Fourth Proportional to 686,715.96, 1,030,132.50 and 188,080.44

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Solution

The fourth proportional to 686,715.96, 1,030,132.50 and 188,080.44 is: 282,136.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,715.96 : 1,030,132.50 = 188,080.44 : x
  2. Step 2: Convert to fraction form
    686,715.96/1,030,132.50 = 188,080.44/x
  3. Step 3: Cross multiply
    686,715.96x = 1,030,132.50 × 188,080.44
  4. Step 4: Simplify right side
    686,715.96x = 193,747,773,858.30
  5. Step 5: Solve for x
    x = 193,747,773,858.30/686,715.96
  6. Step 6: Final answer
    x = 282,136.70

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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.