Home / 498,285.13-687,633.28-271,930.63

Finding the Fourth Proportional to 498,285.13, 687,633.28 and 271,930.63

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Solution

The fourth proportional to 498,285.13, 687,633.28 and 271,930.63 is: 375,264.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,285.13 : 687,633.28 = 271,930.63 : x
  2. Step 2: Convert to fraction form
    498,285.13/687,633.28 = 271,930.63/x
  3. Step 3: Cross multiply
    498,285.13x = 687,633.28 × 271,930.63
  4. Step 4: Simplify right side
    498,285.13x = 186,988,551,039.37
  5. Step 5: Solve for x
    x = 186,988,551,039.37/498,285.13
  6. Step 6: Final answer
    x = 375,264.16

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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.