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Finding the Fourth Proportional to 615,310.70, 922,879.65 and 194,629.10

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Solution

The fourth proportional to 615,310.70, 922,879.65 and 194,629.10 is: 291,916.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,310.70 : 922,879.65 = 194,629.10 : x
  2. Step 2: Convert to fraction form
    615,310.70/922,879.65 = 194,629.10/x
  3. Step 3: Cross multiply
    615,310.70x = 922,879.65 × 194,629.10
  4. Step 4: Simplify right side
    615,310.70x = 179,619,235,687.82
  5. Step 5: Solve for x
    x = 179,619,235,687.82/615,310.70
  6. Step 6: Final answer
    x = 291,916.32

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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.