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Finding the Fourth Proportional to 719,554, 1,079,383.40 and 276,322

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Solution

The fourth proportional to 719,554, 1,079,383.40 and 276,322 is: 414,503.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,554 : 1,079,383.40 = 276,322 : x
  2. Step 2: Convert to fraction form
    719,554/1,079,383.40 = 276,322/x
  3. Step 3: Cross multiply
    719,554x = 1,079,383.40 × 276,322
  4. Step 4: Simplify right side
    719,554x = 298,257,379,854.80
  5. Step 5: Solve for x
    x = 298,257,379,854.80/719,554
  6. Step 6: Final answer
    x = 414,503.12

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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.