Home / 1,208,107.30-1,667,152.82-664,242.52

Finding the Fourth Proportional to 1,208,107.30, 1,667,152.82 and 664,242.52

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Solution

The fourth proportional to 1,208,107.30, 1,667,152.82 and 664,242.52 is: 916,635.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,107.30 : 1,667,152.82 = 664,242.52 : x
  2. Step 2: Convert to fraction form
    1,208,107.30/1,667,152.82 = 664,242.52/x
  3. Step 3: Cross multiply
    1,208,107.30x = 1,667,152.82 × 664,242.52
  4. Step 4: Simplify right side
    1,208,107.30x = 1,107,393,790,381.91
  5. Step 5: Solve for x
    x = 1,107,393,790,381.91/1,208,107.30
  6. Step 6: Final answer
    x = 916,635.29

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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.