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Finding the Fourth Proportional to 1,815,713.02, 2,724,649.52 and 917,245.73

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Solution

The fourth proportional to 1,815,713.02, 2,724,649.52 and 917,245.73 is: 1,376,414.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815,713.02 : 2,724,649.52 = 917,245.73 : x
  2. Step 2: Convert to fraction form
    1,815,713.02/2,724,649.52 = 917,245.73/x
  3. Step 3: Cross multiply
    1,815,713.02x = 2,724,649.52 × 917,245.73
  4. Step 4: Simplify right side
    1,815,713.02x = 2,499,173,133,380.32
  5. Step 5: Solve for x
    x = 2,499,173,133,380.32/1,815,713.02
  6. Step 6: Final answer
    x = 1,376,414.17

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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.