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Finding the Fourth Proportional to 483,248.82, 666,861.78 and 289,763.34

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Solution

The fourth proportional to 483,248.82, 666,861.78 and 289,763.34 is: 399,860.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,248.82 : 666,861.78 = 289,763.34 : x
  2. Step 2: Convert to fraction form
    483,248.82/666,861.78 = 289,763.34/x
  3. Step 3: Cross multiply
    483,248.82x = 666,861.78 × 289,763.34
  4. Step 4: Simplify right side
    483,248.82x = 193,232,096,691.15
  5. Step 5: Solve for x
    x = 193,232,096,691.15/483,248.82
  6. Step 6: Final answer
    x = 399,860.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.