Home / 1,989,853.14-2,745,661.14-1,118,571.78

Finding the Fourth Proportional to 1,989,853.14, 2,745,661.14 and 1,118,571.78

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Solution

The fourth proportional to 1,989,853.14, 2,745,661.14 and 1,118,571.78 is: 1,543,440.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,853.14 : 2,745,661.14 = 1,118,571.78 : x
  2. Step 2: Convert to fraction form
    1,989,853.14/2,745,661.14 = 1,118,571.78/x
  3. Step 3: Cross multiply
    1,989,853.14x = 2,745,661.14 × 1,118,571.78
  4. Step 4: Simplify right side
    1,989,853.14x = 3,071,219,068,646.63
  5. Step 5: Solve for x
    x = 3,071,219,068,646.63/1,989,853.14
  6. Step 6: Final answer
    x = 1,543,440.07

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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.