Home / 1,387,362.72-1,914,804.18-806,765.52

Finding the Fourth Proportional to 1,387,362.72, 1,914,804.18 and 806,765.52

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Solution

The fourth proportional to 1,387,362.72, 1,914,804.18 and 806,765.52 is: 1,113,478.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,362.72 : 1,914,804.18 = 806,765.52 : x
  2. Step 2: Convert to fraction form
    1,387,362.72/1,914,804.18 = 806,765.52/x
  3. Step 3: Cross multiply
    1,387,362.72x = 1,914,804.18 × 806,765.52
  4. Step 4: Simplify right side
    1,387,362.72x = 1,544,797,989,975.87
  5. Step 5: Solve for x
    x = 1,544,797,989,975.87/1,387,362.72
  6. Step 6: Final answer
    x = 1,113,478.09

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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.