Home / 2,105,529.66-2,905,653.87-1,138,678.83

Finding the Fourth Proportional to 2,105,529.66, 2,905,653.87 and 1,138,678.83

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Solution

The fourth proportional to 2,105,529.66, 2,905,653.87 and 1,138,678.83 is: 1,571,389.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,529.66 : 2,905,653.87 = 1,138,678.83 : x
  2. Step 2: Convert to fraction form
    2,105,529.66/2,905,653.87 = 1,138,678.83/x
  3. Step 3: Cross multiply
    2,105,529.66x = 2,905,653.87 × 1,138,678.83
  4. Step 4: Simplify right side
    2,105,529.66x = 3,308,606,549,076.57
  5. Step 5: Solve for x
    x = 3,308,606,549,076.57/2,105,529.66
  6. Step 6: Final answer
    x = 1,571,389.19

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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.