Home / 454,887.78-681,210.36-285,989.10

Finding the Fourth Proportional to 454,887.78, 681,210.36 and 285,989.10

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Solution

The fourth proportional to 454,887.78, 681,210.36 and 285,989.10 is: 428,278.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,887.78 : 681,210.36 = 285,989.10 : x
  2. Step 2: Convert to fraction form
    454,887.78/681,210.36 = 285,989.10/x
  3. Step 3: Cross multiply
    454,887.78x = 681,210.36 × 285,989.10
  4. Step 4: Simplify right side
    454,887.78x = 194,818,737,767.08
  5. Step 5: Solve for x
    x = 194,818,737,767.08/454,887.78
  6. Step 6: Final answer
    x = 428,278.68

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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.