Home / 1,091,189.61-1,636,787.66-381,217.73

Finding the Fourth Proportional to 1,091,189.61, 1,636,787.66 and 381,217.73

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Solution

The fourth proportional to 1,091,189.61, 1,636,787.66 and 381,217.73 is: 571,827.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,189.61 : 1,636,787.66 = 381,217.73 : x
  2. Step 2: Convert to fraction form
    1,091,189.61/1,636,787.66 = 381,217.73/x
  3. Step 3: Cross multiply
    1,091,189.61x = 1,636,787.66 × 381,217.73
  4. Step 4: Simplify right side
    1,091,189.61x = 623,972,466,147.19
  5. Step 5: Solve for x
    x = 623,972,466,147.19/1,091,189.61
  6. Step 6: Final answer
    x = 571,827.72

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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.