Home / 1,276,724.92-1,915,367.73-378,237.01

Finding the Fourth Proportional to 1,276,724.92, 1,915,367.73 and 378,237.01

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Solution

The fourth proportional to 1,276,724.92, 1,915,367.73 and 378,237.01 is: 567,438.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,724.92 : 1,915,367.73 = 378,237.01 : x
  2. Step 2: Convert to fraction form
    1,276,724.92/1,915,367.73 = 378,237.01/x
  3. Step 3: Cross multiply
    1,276,724.92x = 1,915,367.73 × 378,237.01
  4. Step 4: Simplify right side
    1,276,724.92x = 724,462,963,245.69
  5. Step 5: Solve for x
    x = 724,462,963,245.69/1,276,724.92
  6. Step 6: Final answer
    x = 567,438.57

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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.