Home / 498,736.20-688,260.36-283,890.11

Finding the Fourth Proportional to 498,736.20, 688,260.36 and 283,890.11

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Solution

The fourth proportional to 498,736.20, 688,260.36 and 283,890.11 is: 391,770.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,736.20 : 688,260.36 = 283,890.11 : x
  2. Step 2: Convert to fraction form
    498,736.20/688,260.36 = 283,890.11/x
  3. Step 3: Cross multiply
    498,736.20x = 688,260.36 × 283,890.11
  4. Step 4: Simplify right side
    498,736.20x = 195,390,305,867.74
  5. Step 5: Solve for x
    x = 195,390,305,867.74/498,736.20
  6. Step 6: Final answer
    x = 391,770.85

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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.