Home / 642,929.92-964,382.08-199,696.64

Finding the Fourth Proportional to 642,929.92, 964,382.08 and 199,696.64

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Solution

The fourth proportional to 642,929.92, 964,382.08 and 199,696.64 is: 299,540.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,929.92 : 964,382.08 = 199,696.64 : x
  2. Step 2: Convert to fraction form
    642,929.92/964,382.08 = 199,696.64/x
  3. Step 3: Cross multiply
    642,929.92x = 964,382.08 × 199,696.64
  4. Step 4: Simplify right side
    642,929.92x = 192,583,861,052.21
  5. Step 5: Solve for x
    x = 192,583,861,052.21/642,929.92
  6. Step 6: Final answer
    x = 299,540.98

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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.