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Finding the Fourth Proportional to 469,329.08, 647,490.93 and 306,177.39

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Solution

The fourth proportional to 469,329.08, 647,490.93 and 306,177.39 is: 422,405.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,329.08 : 647,490.93 = 306,177.39 : x
  2. Step 2: Convert to fraction form
    469,329.08/647,490.93 = 306,177.39/x
  3. Step 3: Cross multiply
    469,329.08x = 647,490.93 × 306,177.39
  4. Step 4: Simplify right side
    469,329.08x = 198,247,082,996.07
  5. Step 5: Solve for x
    x = 198,247,082,996.07/469,329.08
  6. Step 6: Final answer
    x = 422,405.29

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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.