Home / 681,822.65-940,706.73-395,285.55

Finding the Fourth Proportional to 681,822.65, 940,706.73 and 395,285.55

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Solution

The fourth proportional to 681,822.65, 940,706.73 and 395,285.55 is: 545,373.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,822.65 : 940,706.73 = 395,285.55 : x
  2. Step 2: Convert to fraction form
    681,822.65/940,706.73 = 395,285.55/x
  3. Step 3: Cross multiply
    681,822.65x = 940,706.73 × 395,285.55
  4. Step 4: Simplify right side
    681,822.65x = 371,847,777,156.75
  5. Step 5: Solve for x
    x = 371,847,777,156.75/681,822.65
  6. Step 6: Final answer
    x = 545,373.17

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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.