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Finding the Fourth Proportional to 637,099.29, 879,151.71 and 378,962.01

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Solution

The fourth proportional to 637,099.29, 879,151.71 and 378,962.01 is: 522,940.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,099.29 : 879,151.71 = 378,962.01 : x
  2. Step 2: Convert to fraction form
    637,099.29/879,151.71 = 378,962.01/x
  3. Step 3: Cross multiply
    637,099.29x = 879,151.71 × 378,962.01
  4. Step 4: Simplify right side
    637,099.29x = 333,165,099,116.54
  5. Step 5: Solve for x
    x = 333,165,099,116.54/637,099.29
  6. Step 6: Final answer
    x = 522,940.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.