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Finding the Fourth Proportional to 479,370.29, 719,054.45 and 279,550.63

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Solution

The fourth proportional to 479,370.29, 719,054.45 and 279,550.63 is: 419,325.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,370.29 : 719,054.45 = 279,550.63 : x
  2. Step 2: Convert to fraction form
    479,370.29/719,054.45 = 279,550.63/x
  3. Step 3: Cross multiply
    479,370.29x = 719,054.45 × 279,550.63
  4. Step 4: Simplify right side
    479,370.29x = 201,012,123,104.05
  5. Step 5: Solve for x
    x = 201,012,123,104.05/479,370.29
  6. Step 6: Final answer
    x = 419,325.37

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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.