Home / 1,126,912.96-1,690,431.12-285,472

Finding the Fourth Proportional to 1,126,912.96, 1,690,431.12 and 285,472

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Solution

The fourth proportional to 1,126,912.96, 1,690,431.12 and 285,472 is: 428,223.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,912.96 : 1,690,431.12 = 285,472 : x
  2. Step 2: Convert to fraction form
    1,126,912.96/1,690,431.12 = 285,472/x
  3. Step 3: Cross multiply
    1,126,912.96x = 1,690,431.12 × 285,472
  4. Step 4: Simplify right side
    1,126,912.96x = 482,570,752,688.64
  5. Step 5: Solve for x
    x = 482,570,752,688.64/1,126,912.96
  6. Step 6: Final answer
    x = 428,223.62

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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.