Home / 1,321,117.66-1,823,145.87-777,273.94

Finding the Fourth Proportional to 1,321,117.66, 1,823,145.87 and 777,273.94

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Solution

The fourth proportional to 1,321,117.66, 1,823,145.87 and 777,273.94 is: 1,072,640.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,117.66 : 1,823,145.87 = 777,273.94 : x
  2. Step 2: Convert to fraction form
    1,321,117.66/1,823,145.87 = 777,273.94/x
  3. Step 3: Cross multiply
    1,321,117.66x = 1,823,145.87 × 777,273.94
  4. Step 4: Simplify right side
    1,321,117.66x = 1,417,083,773,569.63
  5. Step 5: Solve for x
    x = 1,417,083,773,569.63/1,321,117.66
  6. Step 6: Final answer
    x = 1,072,640.10

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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.