Home / 524,664.20-787,788.30-419,169.80

Finding the Fourth Proportional to 524,664.20, 787,788.30 and 419,169.80

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Solution

The fourth proportional to 524,664.20, 787,788.30 and 419,169.80 is: 629,387.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,664.20 : 787,788.30 = 419,169.80 : x
  2. Step 2: Convert to fraction form
    524,664.20/787,788.30 = 419,169.80/x
  3. Step 3: Cross multiply
    524,664.20x = 787,788.30 × 419,169.80
  4. Step 4: Simplify right side
    524,664.20x = 330,217,064,153.34
  5. Step 5: Solve for x
    x = 330,217,064,153.34/524,664.20
  6. Step 6: Final answer
    x = 629,387.45

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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.