Home / 691,824.92-1,039,212.41-651,376.35

Finding the Fourth Proportional to 691,824.92, 1,039,212.41 and 651,376.35

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Solution

The fourth proportional to 691,824.92, 1,039,212.41 and 651,376.35 is: 978,453.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,824.92 : 1,039,212.41 = 651,376.35 : x
  2. Step 2: Convert to fraction form
    691,824.92/1,039,212.41 = 651,376.35/x
  3. Step 3: Cross multiply
    691,824.92x = 1,039,212.41 × 651,376.35
  4. Step 4: Simplify right side
    691,824.92x = 676,918,383,243.62
  5. Step 5: Solve for x
    x = 676,918,383,243.62/691,824.92
  6. Step 6: Final answer
    x = 978,453.32

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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.