Home / 1,947,489.13-2,687,485.39-1,088,055.78

Finding the Fourth Proportional to 1,947,489.13, 2,687,485.39 and 1,088,055.78

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Solution

The fourth proportional to 1,947,489.13, 2,687,485.39 and 1,088,055.78 is: 1,501,489.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947,489.13 : 2,687,485.39 = 1,088,055.78 : x
  2. Step 2: Convert to fraction form
    1,947,489.13/2,687,485.39 = 1,088,055.78/x
  3. Step 3: Cross multiply
    1,947,489.13x = 2,687,485.39 × 1,088,055.78
  4. Step 4: Simplify right side
    1,947,489.13x = 2,924,134,012,255.05
  5. Step 5: Solve for x
    x = 2,924,134,012,255.05/1,947,489.13
  6. Step 6: Final answer
    x = 1,501,489.26

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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.