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Finding the Fourth Proportional to 644,347.32, 966,150.54 and 265,529.52

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Solution

The fourth proportional to 644,347.32, 966,150.54 and 265,529.52 is: 398,141.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,347.32 : 966,150.54 = 265,529.52 : x
  2. Step 2: Convert to fraction form
    644,347.32/966,150.54 = 265,529.52/x
  3. Step 3: Cross multiply
    644,347.32x = 966,150.54 × 265,529.52
  4. Step 4: Simplify right side
    644,347.32x = 256,541,489,133.94
  5. Step 5: Solve for x
    x = 256,541,489,133.94/644,347.32
  6. Step 6: Final answer
    x = 398,141.63

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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.