Home / 1,901,918.16-2,851,183.98-687,223.86

Finding the Fourth Proportional to 1,901,918.16, 2,851,183.98 and 687,223.86

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Solution

The fourth proportional to 1,901,918.16, 2,851,183.98 and 687,223.86 is: 1,030,223.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,901,918.16 : 2,851,183.98 = 687,223.86 : x
  2. Step 2: Convert to fraction form
    1,901,918.16/2,851,183.98 = 687,223.86/x
  3. Step 3: Cross multiply
    1,901,918.16x = 2,851,183.98 × 687,223.86
  4. Step 4: Simplify right side
    1,901,918.16x = 1,959,401,660,305.76
  5. Step 5: Solve for x
    x = 1,959,401,660,305.76/1,901,918.16
  6. Step 6: Final answer
    x = 1,030,223.96

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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.