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Finding the Fourth Proportional to 642,954.48, 964,234.81 and 444,549.84

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Solution

The fourth proportional to 642,954.48, 964,234.81 and 444,549.84 is: 666,688.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,954.48 : 964,234.81 = 444,549.84 : x
  2. Step 2: Convert to fraction form
    642,954.48/964,234.81 = 444,549.84/x
  3. Step 3: Cross multiply
    642,954.48x = 964,234.81 × 444,549.84
  4. Step 4: Simplify right side
    642,954.48x = 428,650,430,507.93
  5. Step 5: Solve for x
    x = 428,650,430,507.93/642,954.48
  6. Step 6: Final answer
    x = 666,688.61

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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.