Home / 642,949.14-964,476.32-322,936.47

Finding the Fourth Proportional to 642,949.14, 964,476.32 and 322,936.47

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Solution

The fourth proportional to 642,949.14, 964,476.32 and 322,936.47 is: 484,431.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,949.14 : 964,476.32 = 322,936.47 : x
  2. Step 2: Convert to fraction form
    642,949.14/964,476.32 = 322,936.47/x
  3. Step 3: Cross multiply
    642,949.14x = 964,476.32 × 322,936.47
  4. Step 4: Simplify right side
    642,949.14x = 311,464,576,564.71
  5. Step 5: Solve for x
    x = 311,464,576,564.71/642,949.14
  6. Step 6: Final answer
    x = 484,431.12

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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.