Home / 498,763.06-688,297.56-283,917.04

Finding the Fourth Proportional to 498,763.06, 688,297.56 and 283,917.04

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Solution

The fourth proportional to 498,763.06, 688,297.56 and 283,917.04 is: 391,808.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,763.06 : 688,297.56 = 283,917.04 : x
  2. Step 2: Convert to fraction form
    498,763.06/688,297.56 = 283,917.04/x
  3. Step 3: Cross multiply
    498,763.06x = 688,297.56 × 283,917.04
  4. Step 4: Simplify right side
    498,763.06x = 195,419,405,874.42
  5. Step 5: Solve for x
    x = 195,419,405,874.42/498,763.06
  6. Step 6: Final answer
    x = 391,808.10

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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.