Home / 1,251,118.85-1,726,542.35-678,158.87

Finding the Fourth Proportional to 1,251,118.85, 1,726,542.35 and 678,158.87

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Solution

The fourth proportional to 1,251,118.85, 1,726,542.35 and 678,158.87 is: 935,858.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,118.85 : 1,726,542.35 = 678,158.87 : x
  2. Step 2: Convert to fraction form
    1,251,118.85/1,726,542.35 = 678,158.87/x
  3. Step 3: Cross multiply
    1,251,118.85x = 1,726,542.35 × 678,158.87
  4. Step 4: Simplify right side
    1,251,118.85x = 1,170,869,997,059.64
  5. Step 5: Solve for x
    x = 1,170,869,997,059.64/1,251,118.85
  6. Step 6: Final answer
    x = 935,858.33

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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.