Home / 1,321,118.16-1,823,146.56-777,274.44

Finding the Fourth Proportional to 1,321,118.16, 1,823,146.56 and 777,274.44

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Solution

The fourth proportional to 1,321,118.16, 1,823,146.56 and 777,274.44 is: 1,072,640.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,118.16 : 1,823,146.56 = 777,274.44 : x
  2. Step 2: Convert to fraction form
    1,321,118.16/1,823,146.56 = 777,274.44/x
  3. Step 3: Cross multiply
    1,321,118.16x = 1,823,146.56 × 777,274.44
  4. Step 4: Simplify right side
    1,321,118.16x = 1,417,085,221,461.93
  5. Step 5: Solve for x
    x = 1,417,085,221,461.93/1,321,118.16
  6. Step 6: Final answer
    x = 1,072,640.79

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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.