Home / 678,331.26-936,050.31-376,501.50

Finding the Fourth Proportional to 678,331.26, 936,050.31 and 376,501.50

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Solution

The fourth proportional to 678,331.26, 936,050.31 and 376,501.50 is: 519,546.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,331.26 : 936,050.31 = 376,501.50 : x
  2. Step 2: Convert to fraction form
    678,331.26/936,050.31 = 376,501.50/x
  3. Step 3: Cross multiply
    678,331.26x = 936,050.31 × 376,501.50
  4. Step 4: Simplify right side
    678,331.26x = 352,424,345,790.47
  5. Step 5: Solve for x
    x = 352,424,345,790.47/678,331.26
  6. Step 6: Final answer
    x = 519,546.08

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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.