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Finding the Fourth Proportional to 479,672.49, 662,034.69 and 286,092.62

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Solution

The fourth proportional to 479,672.49, 662,034.69 and 286,092.62 is: 394,859.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,672.49 : 662,034.69 = 286,092.62 : x
  2. Step 2: Convert to fraction form
    479,672.49/662,034.69 = 286,092.62/x
  3. Step 3: Cross multiply
    479,672.49x = 662,034.69 × 286,092.62
  4. Step 4: Simplify right side
    479,672.49x = 189,403,235,682.81
  5. Step 5: Solve for x
    x = 189,403,235,682.81/479,672.49
  6. Step 6: Final answer
    x = 394,859.49

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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.