Home / 1,276,889.52-1,915,616.16-378,402.96

Finding the Fourth Proportional to 1,276,889.52, 1,915,616.16 and 378,402.96

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Solution

The fourth proportional to 1,276,889.52, 1,915,616.16 and 378,402.96 is: 567,687.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,889.52 : 1,915,616.16 = 378,402.96 : x
  2. Step 2: Convert to fraction form
    1,276,889.52/1,915,616.16 = 378,402.96/x
  3. Step 3: Cross multiply
    1,276,889.52x = 1,915,616.16 × 378,402.96
  4. Step 4: Simplify right side
    1,276,889.52x = 724,874,825,167.83
  5. Step 5: Solve for x
    x = 724,874,825,167.83/1,276,889.52
  6. Step 6: Final answer
    x = 567,687.97

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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.