Home / 1,293,914.92-1,785,578.82-720,942.76

Finding the Fourth Proportional to 1,293,914.92, 1,785,578.82 and 720,942.76

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Solution

The fourth proportional to 1,293,914.92, 1,785,578.82 and 720,942.76 is: 994,887.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,914.92 : 1,785,578.82 = 720,942.76 : x
  2. Step 2: Convert to fraction form
    1,293,914.92/1,785,578.82 = 720,942.76/x
  3. Step 3: Cross multiply
    1,293,914.92x = 1,785,578.82 × 720,942.76
  4. Step 4: Simplify right side
    1,293,914.92x = 1,287,300,122,688.34
  5. Step 5: Solve for x
    x = 1,287,300,122,688.34/1,293,914.92
  6. Step 6: Final answer
    x = 994,887.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.