Home / 643,366.06-964,375.69-216,754.46

Finding the Fourth Proportional to 643,366.06, 964,375.69 and 216,754.46

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Solution

The fourth proportional to 643,366.06, 964,375.69 and 216,754.46 is: 324,904.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,366.06 : 964,375.69 = 216,754.46 : x
  2. Step 2: Convert to fraction form
    643,366.06/964,375.69 = 216,754.46/x
  3. Step 3: Cross multiply
    643,366.06x = 964,375.69 × 216,754.46
  4. Step 4: Simplify right side
    643,366.06x = 209,032,736,006.75
  5. Step 5: Solve for x
    x = 209,032,736,006.75/643,366.06
  6. Step 6: Final answer
    x = 324,904.82

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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.