Home / 668,788.99-1,002,972.75-219,405.14

Finding the Fourth Proportional to 668,788.99, 1,002,972.75 and 219,405.14

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Solution

The fourth proportional to 668,788.99, 1,002,972.75 and 219,405.14 is: 329,038.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,788.99 : 1,002,972.75 = 219,405.14 : x
  2. Step 2: Convert to fraction form
    668,788.99/1,002,972.75 = 219,405.14/x
  3. Step 3: Cross multiply
    668,788.99x = 1,002,972.75 × 219,405.14
  4. Step 4: Simplify right side
    668,788.99x = 220,057,376,629.94
  5. Step 5: Solve for x
    x = 220,057,376,629.94/668,788.99
  6. Step 6: Final answer
    x = 329,038.58

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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.