Home / 2,105,531.66-2,905,656.64-1,138,680.84

Finding the Fourth Proportional to 2,105,531.66, 2,905,656.64 and 1,138,680.84

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Solution

The fourth proportional to 2,105,531.66, 2,905,656.64 and 1,138,680.84 is: 1,571,391.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,531.66 : 2,905,656.64 = 1,138,680.84 : x
  2. Step 2: Convert to fraction form
    2,105,531.66/2,905,656.64 = 1,138,680.84/x
  3. Step 3: Cross multiply
    2,105,531.66x = 2,905,656.64 × 1,138,680.84
  4. Step 4: Simplify right side
    2,105,531.66x = 3,308,615,543,586.78
  5. Step 5: Solve for x
    x = 3,308,615,543,586.78/2,105,531.66
  6. Step 6: Final answer
    x = 1,571,391.97

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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.