Home / 1,276,717.46-1,915,356.33-378,229.47

Finding the Fourth Proportional to 1,276,717.46, 1,915,356.33 and 378,229.47

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Solution

The fourth proportional to 1,276,717.46, 1,915,356.33 and 378,229.47 is: 567,427.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,717.46 : 1,915,356.33 = 378,229.47 : x
  2. Step 2: Convert to fraction form
    1,276,717.46/1,915,356.33 = 378,229.47/x
  3. Step 3: Cross multiply
    1,276,717.46x = 1,915,356.33 × 378,229.47
  4. Step 4: Simplify right side
    1,276,717.46x = 724,444,209,557.05
  5. Step 5: Solve for x
    x = 724,444,209,557.05/1,276,717.46
  6. Step 6: Final answer
    x = 567,427.20

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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.