Home / 1,129,963.32-1,558,963.26-646,352.28

Finding the Fourth Proportional to 1,129,963.32, 1,558,963.26 and 646,352.28

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Solution

The fourth proportional to 1,129,963.32, 1,558,963.26 and 646,352.28 is: 891,745.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,963.32 : 1,558,963.26 = 646,352.28 : x
  2. Step 2: Convert to fraction form
    1,129,963.32/1,558,963.26 = 646,352.28/x
  3. Step 3: Cross multiply
    1,129,963.32x = 1,558,963.26 × 646,352.28
  4. Step 4: Simplify right side
    1,129,963.32x = 1,007,639,457,537.23
  5. Step 5: Solve for x
    x = 1,007,639,457,537.23/1,129,963.32
  6. Step 6: Final answer
    x = 891,745.28

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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.