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Finding the Fourth Proportional to 1,664,472.52, 2,296,971.30 and 939,472.30

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Solution

The fourth proportional to 1,664,472.52, 2,296,971.30 and 939,472.30 is: 1,296,471.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664,472.52 : 2,296,971.30 = 939,472.30 : x
  2. Step 2: Convert to fraction form
    1,664,472.52/2,296,971.30 = 939,472.30/x
  3. Step 3: Cross multiply
    1,664,472.52x = 2,296,971.30 × 939,472.30
  4. Step 4: Simplify right side
    1,664,472.52x = 2,157,940,910,244.99
  5. Step 5: Solve for x
    x = 2,157,940,910,244.99/1,664,472.52
  6. Step 6: Final answer
    x = 1,296,471.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.