Home / 766,405.87-1,057,640.39-444,302.69

Finding the Fourth Proportional to 766,405.87, 1,057,640.39 and 444,302.69

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Solution

The fourth proportional to 766,405.87, 1,057,640.39 and 444,302.69 is: 613,137.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,405.87 : 1,057,640.39 = 444,302.69 : x
  2. Step 2: Convert to fraction form
    766,405.87/1,057,640.39 = 444,302.69/x
  3. Step 3: Cross multiply
    766,405.87x = 1,057,640.39 × 444,302.69
  4. Step 4: Simplify right side
    766,405.87x = 469,912,464,486.07
  5. Step 5: Solve for x
    x = 469,912,464,486.07/766,405.87
  6. Step 6: Final answer
    x = 613,137.87

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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.