Home / 638,106.42-956,257.29-353,922.18

Finding the Fourth Proportional to 638,106.42, 956,257.29 and 353,922.18

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Solution

The fourth proportional to 638,106.42, 956,257.29 and 353,922.18 is: 530,382.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,106.42 : 956,257.29 = 353,922.18 : x
  2. Step 2: Convert to fraction form
    638,106.42/956,257.29 = 353,922.18/x
  3. Step 3: Cross multiply
    638,106.42x = 956,257.29 × 353,922.18
  4. Step 4: Simplify right side
    638,106.42x = 338,440,664,717.69
  5. Step 5: Solve for x
    x = 338,440,664,717.69/638,106.42
  6. Step 6: Final answer
    x = 530,382.79

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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.