Home / 658,183.21-987,079.20-279,098.35

Finding the Fourth Proportional to 658,183.21, 987,079.20 and 279,098.35

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Solution

The fourth proportional to 658,183.21, 987,079.20 and 279,098.35 is: 418,564.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,183.21 : 987,079.20 = 279,098.35 : x
  2. Step 2: Convert to fraction form
    658,183.21/987,079.20 = 279,098.35/x
  3. Step 3: Cross multiply
    658,183.21x = 987,079.20 × 279,098.35
  4. Step 4: Simplify right side
    658,183.21x = 275,492,176,039.32
  5. Step 5: Solve for x
    x = 275,492,176,039.32/658,183.21
  6. Step 6: Final answer
    x = 418,564.58

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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.