Home / 791,890.72-1,092,795.78-447,721

Finding the Fourth Proportional to 791,890.72, 1,092,795.78 and 447,721

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Solution

The fourth proportional to 791,890.72, 1,092,795.78 and 447,721 is: 617,847.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,890.72 : 1,092,795.78 = 447,721 : x
  2. Step 2: Convert to fraction form
    791,890.72/1,092,795.78 = 447,721/x
  3. Step 3: Cross multiply
    791,890.72x = 1,092,795.78 × 447,721
  4. Step 4: Simplify right side
    791,890.72x = 489,267,619,417.38
  5. Step 5: Solve for x
    x = 489,267,619,417.38/791,890.72
  6. Step 6: Final answer
    x = 617,847.40

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Why These Related Problems?

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