Home / 1,284,723.60-1,926,631.80-443,079.60

Finding the Fourth Proportional to 1,284,723.60, 1,926,631.80 and 443,079.60

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Solution

The fourth proportional to 1,284,723.60, 1,926,631.80 and 443,079.60 is: 664,462.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,723.60 : 1,926,631.80 = 443,079.60 : x
  2. Step 2: Convert to fraction form
    1,284,723.60/1,926,631.80 = 443,079.60/x
  3. Step 3: Cross multiply
    1,284,723.60x = 1,926,631.80 × 443,079.60
  4. Step 4: Simplify right side
    1,284,723.60x = 853,651,247,291.28
  5. Step 5: Solve for x
    x = 853,651,247,291.28/1,284,723.60
  6. Step 6: Final answer
    x = 664,462.96

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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.