Home / 1,616,619.84-2,231,062.56-891,533.76

Finding the Fourth Proportional to 1,616,619.84, 2,231,062.56 and 891,533.76

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Solution

The fourth proportional to 1,616,619.84, 2,231,062.56 and 891,533.76 is: 1,230,386.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,616,619.84 : 2,231,062.56 = 891,533.76 : x
  2. Step 2: Convert to fraction form
    1,616,619.84/2,231,062.56 = 891,533.76/x
  3. Step 3: Cross multiply
    1,616,619.84x = 2,231,062.56 × 891,533.76
  4. Step 4: Simplify right side
    1,616,619.84x = 1,989,067,592,912.03
  5. Step 5: Solve for x
    x = 1,989,067,592,912.03/1,616,619.84
  6. Step 6: Final answer
    x = 1,230,386.73

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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.