Home / 1,189,822.18-1,785,388.11-515,908.66

Finding the Fourth Proportional to 1,189,822.18, 1,785,388.11 and 515,908.66

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Solution

The fourth proportional to 1,189,822.18, 1,785,388.11 and 515,908.66 is: 774,146.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,822.18 : 1,785,388.11 = 515,908.66 : x
  2. Step 2: Convert to fraction form
    1,189,822.18/1,785,388.11 = 515,908.66/x
  3. Step 3: Cross multiply
    1,189,822.18x = 1,785,388.11 × 515,908.66
  4. Step 4: Simplify right side
    1,189,822.18x = 921,097,187,410.03
  5. Step 5: Solve for x
    x = 921,097,187,410.03/1,189,822.18
  6. Step 6: Final answer
    x = 774,146.93

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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.