Home / 1,276,721.14-1,915,361.76-378,233.11

Finding the Fourth Proportional to 1,276,721.14, 1,915,361.76 and 378,233.11

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Solution

The fourth proportional to 1,276,721.14, 1,915,361.76 and 378,233.11 is: 567,432.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,721.14 : 1,915,361.76 = 378,233.11 : x
  2. Step 2: Convert to fraction form
    1,276,721.14/1,915,361.76 = 378,233.11/x
  3. Step 3: Cross multiply
    1,276,721.14x = 1,915,361.76 × 378,233.11
  4. Step 4: Simplify right side
    1,276,721.14x = 724,453,235,259.87
  5. Step 5: Solve for x
    x = 724,453,235,259.87/1,276,721.14
  6. Step 6: Final answer
    x = 567,432.63

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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.