Home / 1,256,021.52-1,883,179.71-639,009.06

Finding the Fourth Proportional to 1,256,021.52, 1,883,179.71 and 639,009.06

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Solution

The fourth proportional to 1,256,021.52, 1,883,179.71 and 639,009.06 is: 958,079.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,021.52 : 1,883,179.71 = 639,009.06 : x
  2. Step 2: Convert to fraction form
    1,256,021.52/1,883,179.71 = 639,009.06/x
  3. Step 3: Cross multiply
    1,256,021.52x = 1,883,179.71 × 639,009.06
  4. Step 4: Simplify right side
    1,256,021.52x = 1,203,368,896,298.17
  5. Step 5: Solve for x
    x = 1,203,368,896,298.17/1,256,021.52
  6. Step 6: Final answer
    x = 958,079.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.