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Finding the Fourth Proportional to 779,235.88, 1,168,152.06 and 280,249

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Solution

The fourth proportional to 779,235.88, 1,168,152.06 and 280,249 is: 420,121.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,235.88 : 1,168,152.06 = 280,249 : x
  2. Step 2: Convert to fraction form
    779,235.88/1,168,152.06 = 280,249/x
  3. Step 3: Cross multiply
    779,235.88x = 1,168,152.06 × 280,249
  4. Step 4: Simplify right side
    779,235.88x = 327,373,446,662.94
  5. Step 5: Solve for x
    x = 327,373,446,662.94/779,235.88
  6. Step 6: Final answer
    x = 420,121.11

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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.