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Finding the Fourth Proportional to 662,978.71, 994,621.02 and 207,544.06

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Solution

The fourth proportional to 662,978.71, 994,621.02 and 207,544.06 is: 311,363.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,978.71 : 994,621.02 = 207,544.06 : x
  2. Step 2: Convert to fraction form
    662,978.71/994,621.02 = 207,544.06/x
  3. Step 3: Cross multiply
    662,978.71x = 994,621.02 × 207,544.06
  4. Step 4: Simplify right side
    662,978.71x = 206,427,684,652.14
  5. Step 5: Solve for x
    x = 206,427,684,652.14/662,978.71
  6. Step 6: Final answer
    x = 311,363.97

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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.