Home / 778,552.64-1,074,403.36-456,198.56

Finding the Fourth Proportional to 778,552.64, 1,074,403.36 and 456,198.56

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Solution

The fourth proportional to 778,552.64, 1,074,403.36 and 456,198.56 is: 629,554.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,552.64 : 1,074,403.36 = 456,198.56 : x
  2. Step 2: Convert to fraction form
    778,552.64/1,074,403.36 = 456,198.56/x
  3. Step 3: Cross multiply
    778,552.64x = 1,074,403.36 × 456,198.56
  4. Step 4: Simplify right side
    778,552.64x = 490,141,265,691.16
  5. Step 5: Solve for x
    x = 490,141,265,691.16/778,552.64
  6. Step 6: Final answer
    x = 629,554.43

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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.