Home / 1,917,939.60-2,874,941.10-1,118,809.80

Finding the Fourth Proportional to 1,917,939.60, 2,874,941.10 and 1,118,809.80

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Solution

The fourth proportional to 1,917,939.60, 2,874,941.10 and 1,118,809.80 is: 1,677,066.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,917,939.60 : 2,874,941.10 = 1,118,809.80 : x
  2. Step 2: Convert to fraction form
    1,917,939.60/2,874,941.10 = 1,118,809.80/x
  3. Step 3: Cross multiply
    1,917,939.60x = 2,874,941.10 × 1,118,809.80
  4. Step 4: Simplify right side
    1,917,939.60x = 3,216,512,277,102.78
  5. Step 5: Solve for x
    x = 3,216,512,277,102.78/1,917,939.60
  6. Step 6: Final answer
    x = 1,677,066.51

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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.