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Finding the Fourth Proportional to 479,536.45, 719,304.46 and 142,575.64

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Solution

The fourth proportional to 479,536.45, 719,304.46 and 142,575.64 is: 213,863.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,536.45 : 719,304.46 = 142,575.64 : x
  2. Step 2: Convert to fraction form
    479,536.45/719,304.46 = 142,575.64/x
  3. Step 3: Cross multiply
    479,536.45x = 719,304.46 × 142,575.64
  4. Step 4: Simplify right side
    479,536.45x = 102,555,293,739.35
  5. Step 5: Solve for x
    x = 102,555,293,739.35/479,536.45
  6. Step 6: Final answer
    x = 213,863.40

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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.