Home / 1,128,753.51-1,557,236.44-645,059.17

Finding the Fourth Proportional to 1,128,753.51, 1,557,236.44 and 645,059.17

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Solution

The fourth proportional to 1,128,753.51, 1,557,236.44 and 645,059.17 is: 889,928.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,753.51 : 1,557,236.44 = 645,059.17 : x
  2. Step 2: Convert to fraction form
    1,128,753.51/1,557,236.44 = 645,059.17/x
  3. Step 3: Cross multiply
    1,128,753.51x = 1,557,236.44 × 645,059.17
  4. Step 4: Simplify right side
    1,128,753.51x = 1,004,509,645,480.15
  5. Step 5: Solve for x
    x = 1,004,509,645,480.15/1,128,753.51
  6. Step 6: Final answer
    x = 889,928.26

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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.