Home / 1,251,112.05-1,726,537.55-678,149.64

Finding the Fourth Proportional to 1,251,112.05, 1,726,537.55 and 678,149.64

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Solution

The fourth proportional to 1,251,112.05, 1,726,537.55 and 678,149.64 is: 935,848.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,112.05 : 1,726,537.55 = 678,149.64 : x
  2. Step 2: Convert to fraction form
    1,251,112.05/1,726,537.55 = 678,149.64/x
  3. Step 3: Cross multiply
    1,251,112.05x = 1,726,537.55 × 678,149.64
  4. Step 4: Simplify right side
    1,251,112.05x = 1,170,850,814,588.23
  5. Step 5: Solve for x
    x = 1,170,850,814,588.23/1,251,112.05
  6. Step 6: Final answer
    x = 935,848.08

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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.