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Finding the Fourth Proportional to 803,453.62, 1,205,187.51 and 204,415.54

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Solution

The fourth proportional to 803,453.62, 1,205,187.51 and 204,415.54 is: 306,625.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,453.62 : 1,205,187.51 = 204,415.54 : x
  2. Step 2: Convert to fraction form
    803,453.62/1,205,187.51 = 204,415.54/x
  3. Step 3: Cross multiply
    803,453.62x = 1,205,187.51 × 204,415.54
  4. Step 4: Simplify right side
    803,453.62x = 246,359,055,657.91
  5. Step 5: Solve for x
    x = 246,359,055,657.91/803,453.62
  6. Step 6: Final answer
    x = 306,625.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.