Home / 498,315.33-687,665.57-271,962.45

Finding the Fourth Proportional to 498,315.33, 687,665.57 and 271,962.45

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Solution

The fourth proportional to 498,315.33, 687,665.57 and 271,962.45 is: 375,302.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,315.33 : 687,665.57 = 271,962.45 : x
  2. Step 2: Convert to fraction form
    498,315.33/687,665.57 = 271,962.45/x
  3. Step 3: Cross multiply
    498,315.33x = 687,665.57 × 271,962.45
  4. Step 4: Simplify right side
    498,315.33x = 187,019,211,838.03
  5. Step 5: Solve for x
    x = 187,019,211,838.03/498,315.33
  6. Step 6: Final answer
    x = 375,302.95

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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.