Home / 454,889.78-681,213.36-285,991.10

Finding the Fourth Proportional to 454,889.78, 681,213.36 and 285,991.10

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Solution

The fourth proportional to 454,889.78, 681,213.36 and 285,991.10 is: 428,281.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,889.78 : 681,213.36 = 285,991.10 : x
  2. Step 2: Convert to fraction form
    454,889.78/681,213.36 = 285,991.10/x
  3. Step 3: Cross multiply
    454,889.78x = 681,213.36 × 285,991.10
  4. Step 4: Simplify right side
    454,889.78x = 194,820,958,161.10
  5. Step 5: Solve for x
    x = 194,820,958,161.10/454,889.78
  6. Step 6: Final answer
    x = 428,281.68

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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.