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Finding the Fourth Proportional to 644,375.54, 966,192.86 and 265,557.80

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Solution

The fourth proportional to 644,375.54, 966,192.86 and 265,557.80 is: 398,184.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,375.54 : 966,192.86 = 265,557.80 : x
  2. Step 2: Convert to fraction form
    644,375.54/966,192.86 = 265,557.80/x
  3. Step 3: Cross multiply
    644,375.54x = 966,192.86 × 265,557.80
  4. Step 4: Simplify right side
    644,375.54x = 256,580,050,277.31
  5. Step 5: Solve for x
    x = 256,580,050,277.31/644,375.54
  6. Step 6: Final answer
    x = 398,184.03

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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.