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Finding the Fourth Proportional to 578,859.77, 867,826.02 and 275,101.47

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Solution

The fourth proportional to 578,859.77, 867,826.02 and 275,101.47 is: 412,431.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,859.77 : 867,826.02 = 275,101.47 : x
  2. Step 2: Convert to fraction form
    578,859.77/867,826.02 = 275,101.47/x
  3. Step 3: Cross multiply
    578,859.77x = 867,826.02 × 275,101.47
  4. Step 4: Simplify right side
    578,859.77x = 238,740,213,806.25
  5. Step 5: Solve for x
    x = 238,740,213,806.25/578,859.77
  6. Step 6: Final answer
    x = 412,431.87

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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.