Home / 1,276,757.43-1,915,416.40-378,269.52

Finding the Fourth Proportional to 1,276,757.43, 1,915,416.40 and 378,269.52

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Solution

The fourth proportional to 1,276,757.43, 1,915,416.40 and 378,269.52 is: 567,487.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,757.43 : 1,915,416.40 = 378,269.52 : x
  2. Step 2: Convert to fraction form
    1,276,757.43/1,915,416.40 = 378,269.52/x
  3. Step 3: Cross multiply
    1,276,757.43x = 1,915,416.40 × 378,269.52
  4. Step 4: Simplify right side
    1,276,757.43x = 724,543,632,651.05
  5. Step 5: Solve for x
    x = 724,543,632,651.05/1,276,757.43
  6. Step 6: Final answer
    x = 567,487.31

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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.