Home / 865,146.68-1,297,723.06-266,103.80

Finding the Fourth Proportional to 865,146.68, 1,297,723.06 and 266,103.80

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Solution

The fourth proportional to 865,146.68, 1,297,723.06 and 266,103.80 is: 399,156.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,146.68 : 1,297,723.06 = 266,103.80 : x
  2. Step 2: Convert to fraction form
    865,146.68/1,297,723.06 = 266,103.80/x
  3. Step 3: Cross multiply
    865,146.68x = 1,297,723.06 × 266,103.80
  4. Step 4: Simplify right side
    865,146.68x = 345,329,037,613.63
  5. Step 5: Solve for x
    x = 345,329,037,613.63/865,146.68
  6. Step 6: Final answer
    x = 399,156.64

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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.