Home / 1,705,727.64-2,351,100.90-1,209,180.78

Finding the Fourth Proportional to 1,705,727.64, 2,351,100.90 and 1,209,180.78

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Solution

The fourth proportional to 1,705,727.64, 2,351,100.90 and 1,209,180.78 is: 1,666,682.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,705,727.64 : 2,351,100.90 = 1,209,180.78 : x
  2. Step 2: Convert to fraction form
    1,705,727.64/2,351,100.90 = 1,209,180.78/x
  3. Step 3: Cross multiply
    1,705,727.64x = 2,351,100.90 × 1,209,180.78
  4. Step 4: Simplify right side
    1,705,727.64x = 2,842,906,020,120.70
  5. Step 5: Solve for x
    x = 2,842,906,020,120.70/1,705,727.64
  6. Step 6: Final answer
    x = 1,666,682.27

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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.