Home / 1,331,022.72-1,997,467.20-769,284.48

Finding the Fourth Proportional to 1,331,022.72, 1,997,467.20 and 769,284.48

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Solution

The fourth proportional to 1,331,022.72, 1,997,467.20 and 769,284.48 is: 1,154,466.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,331,022.72 : 1,997,467.20 = 769,284.48 : x
  2. Step 2: Convert to fraction form
    1,331,022.72/1,997,467.20 = 769,284.48/x
  3. Step 3: Cross multiply
    1,331,022.72x = 1,997,467.20 × 769,284.48
  4. Step 4: Simplify right side
    1,331,022.72x = 1,536,620,516,269.06
  5. Step 5: Solve for x
    x = 1,536,620,516,269.06/1,331,022.72
  6. Step 6: Final answer
    x = 1,154,466.03

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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.