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Finding the Fourth Proportional to 555,146.92, 766,105.28 and 300,498.11

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Solution

The fourth proportional to 555,146.92, 766,105.28 and 300,498.11 is: 414,688.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,146.92 : 766,105.28 = 300,498.11 : x
  2. Step 2: Convert to fraction form
    555,146.92/766,105.28 = 300,498.11/x
  3. Step 3: Cross multiply
    555,146.92x = 766,105.28 × 300,498.11
  4. Step 4: Simplify right side
    555,146.92x = 230,213,188,701.02
  5. Step 5: Solve for x
    x = 230,213,188,701.02/555,146.92
  6. Step 6: Final answer
    x = 414,688.76

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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.