Home / 905,815.82-1,358,729.53-266,116.95

Finding the Fourth Proportional to 905,815.82, 1,358,729.53 and 266,116.95

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Solution

The fourth proportional to 905,815.82, 1,358,729.53 and 266,116.95 is: 399,177.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,815.82 : 1,358,729.53 = 266,116.95 : x
  2. Step 2: Convert to fraction form
    905,815.82/1,358,729.53 = 266,116.95/x
  3. Step 3: Cross multiply
    905,815.82x = 1,358,729.53 × 266,116.95
  4. Step 4: Simplify right side
    905,815.82x = 361,580,957,733.24
  5. Step 5: Solve for x
    x = 361,580,957,733.24/905,815.82
  6. Step 6: Final answer
    x = 399,177.13

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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.