Home / 678,323.26-936,039.27-376,493.50

Finding the Fourth Proportional to 678,323.26, 936,039.27 and 376,493.50

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Solution

The fourth proportional to 678,323.26, 936,039.27 and 376,493.50 is: 519,535.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,323.26 : 936,039.27 = 376,493.50 : x
  2. Step 2: Convert to fraction form
    678,323.26/936,039.27 = 376,493.50/x
  3. Step 3: Cross multiply
    678,323.26x = 936,039.27 × 376,493.50
  4. Step 4: Simplify right side
    678,323.26x = 352,412,700,899.75
  5. Step 5: Solve for x
    x = 352,412,700,899.75/678,323.26
  6. Step 6: Final answer
    x = 519,535.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.