Home / 1,321,116.66-1,823,144.49-777,272.94

Finding the Fourth Proportional to 1,321,116.66, 1,823,144.49 and 777,272.94

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Solution

The fourth proportional to 1,321,116.66, 1,823,144.49 and 777,272.94 is: 1,072,638.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,116.66 : 1,823,144.49 = 777,272.94 : x
  2. Step 2: Convert to fraction form
    1,321,116.66/1,823,144.49 = 777,272.94/x
  3. Step 3: Cross multiply
    1,321,116.66x = 1,823,144.49 × 777,272.94
  4. Step 4: Simplify right side
    1,321,116.66x = 1,417,080,877,787.10
  5. Step 5: Solve for x
    x = 1,417,080,877,787.10/1,321,116.66
  6. Step 6: Final answer
    x = 1,072,638.72

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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.