Home / 1,384,665.90-1,910,839.86-764,471.58

Finding the Fourth Proportional to 1,384,665.90, 1,910,839.86 and 764,471.58

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Solution

The fourth proportional to 1,384,665.90, 1,910,839.86 and 764,471.58 is: 1,054,971.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,665.90 : 1,910,839.86 = 764,471.58 : x
  2. Step 2: Convert to fraction form
    1,384,665.90/1,910,839.86 = 764,471.58/x
  3. Step 3: Cross multiply
    1,384,665.90x = 1,910,839.86 × 764,471.58
  4. Step 4: Simplify right side
    1,384,665.90x = 1,460,782,766,901.18
  5. Step 5: Solve for x
    x = 1,460,782,766,901.18/1,384,665.90
  6. Step 6: Final answer
    x = 1,054,971.29

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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.