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Finding the Fourth Proportional to 479,412.30, 718,931.53 and 179,729.51

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Solution

The fourth proportional to 479,412.30, 718,931.53 and 179,729.51 is: 269,524.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,412.30 : 718,931.53 = 179,729.51 : x
  2. Step 2: Convert to fraction form
    479,412.30/718,931.53 = 179,729.51/x
  3. Step 3: Cross multiply
    479,412.30x = 718,931.53 × 179,729.51
  4. Step 4: Simplify right side
    479,412.30x = 129,213,211,610.45
  5. Step 5: Solve for x
    x = 129,213,211,610.45/479,412.30
  6. Step 6: Final answer
    x = 269,524.19

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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.