Home / 643,149.06-964,869.39-222,428.58

Finding the Fourth Proportional to 643,149.06, 964,869.39 and 222,428.58

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Solution

The fourth proportional to 643,149.06, 964,869.39 and 222,428.58 is: 333,693.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,149.06 : 964,869.39 = 222,428.58 : x
  2. Step 2: Convert to fraction form
    643,149.06/964,869.39 = 222,428.58/x
  3. Step 3: Cross multiply
    643,149.06x = 964,869.39 × 222,428.58
  4. Step 4: Simplify right side
    643,149.06x = 214,614,528,303.17
  5. Step 5: Solve for x
    x = 214,614,528,303.17/643,149.06
  6. Step 6: Final answer
    x = 333,693.29

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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.