Home / 1,376,478.32-1,899,843.89-764,841.33

Finding the Fourth Proportional to 1,376,478.32, 1,899,843.89 and 764,841.33

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Solution

The fourth proportional to 1,376,478.32, 1,899,843.89 and 764,841.33 is: 1,055,649.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,478.32 : 1,899,843.89 = 764,841.33 : x
  2. Step 2: Convert to fraction form
    1,376,478.32/1,899,843.89 = 764,841.33/x
  3. Step 3: Cross multiply
    1,376,478.32x = 1,899,843.89 × 764,841.33
  4. Step 4: Simplify right side
    1,376,478.32x = 1,453,079,123,795.77
  5. Step 5: Solve for x
    x = 1,453,079,123,795.77/1,376,478.32
  6. Step 6: Final answer
    x = 1,055,649.85

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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.