Home / 1,851,121.38-2,777,029.65-840,314.28

Finding the Fourth Proportional to 1,851,121.38, 2,777,029.65 and 840,314.28

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Solution

The fourth proportional to 1,851,121.38, 2,777,029.65 and 840,314.28 is: 1,260,629.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,851,121.38 : 2,777,029.65 = 840,314.28 : x
  2. Step 2: Convert to fraction form
    1,851,121.38/2,777,029.65 = 840,314.28/x
  3. Step 3: Cross multiply
    1,851,121.38x = 2,777,029.65 × 840,314.28
  4. Step 4: Simplify right side
    1,851,121.38x = 2,333,577,670,878.40
  5. Step 5: Solve for x
    x = 2,333,577,670,878.40/1,851,121.38
  6. Step 6: Final answer
    x = 1,260,629.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.