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Finding the Fourth Proportional to 890,118.20, 1,228,358.07 and 482,228

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Solution

The fourth proportional to 890,118.20, 1,228,358.07 and 482,228 is: 665,471.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,118.20 : 1,228,358.07 = 482,228 : x
  2. Step 2: Convert to fraction form
    890,118.20/1,228,358.07 = 482,228/x
  3. Step 3: Cross multiply
    890,118.20x = 1,228,358.07 × 482,228
  4. Step 4: Simplify right side
    890,118.20x = 592,348,655,379.96
  5. Step 5: Solve for x
    x = 592,348,655,379.96/890,118.20
  6. Step 6: Final answer
    x = 665,471.91

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.