Home / 1,321,218.64-1,823,195.28-777,249.32

Finding the Fourth Proportional to 1,321,218.64, 1,823,195.28 and 777,249.32

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Solution

The fourth proportional to 1,321,218.64, 1,823,195.28 and 777,249.32 is: 1,072,553.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,218.64 : 1,823,195.28 = 777,249.32 : x
  2. Step 2: Convert to fraction form
    1,321,218.64/1,823,195.28 = 777,249.32/x
  3. Step 3: Cross multiply
    1,321,218.64x = 1,823,195.28 × 777,249.32
  4. Step 4: Simplify right side
    1,321,218.64x = 1,417,077,295,661.39
  5. Step 5: Solve for x
    x = 1,417,077,295,661.39/1,321,218.64
  6. Step 6: Final answer
    x = 1,072,553.21

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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.