Home / 455,513.20-683,885.40-266,167.60

Finding the Fourth Proportional to 455,513.20, 683,885.40 and 266,167.60

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Solution

The fourth proportional to 455,513.20, 683,885.40 and 266,167.60 is: 399,611.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,513.20 : 683,885.40 = 266,167.60 : x
  2. Step 2: Convert to fraction form
    455,513.20/683,885.40 = 266,167.60/x
  3. Step 3: Cross multiply
    455,513.20x = 683,885.40 × 266,167.60
  4. Step 4: Simplify right side
    455,513.20x = 182,028,135,593.04
  5. Step 5: Solve for x
    x = 182,028,135,593.04/455,513.20
  6. Step 6: Final answer
    x = 399,611.11

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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.