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Finding the Fourth Proportional to 665,488.28, 998,625.54 and 349,969.52

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Solution

The fourth proportional to 665,488.28, 998,625.54 and 349,969.52 is: 525,161.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,488.28 : 998,625.54 = 349,969.52 : x
  2. Step 2: Convert to fraction form
    665,488.28/998,625.54 = 349,969.52/x
  3. Step 3: Cross multiply
    665,488.28x = 998,625.54 × 349,969.52
  4. Step 4: Simplify right side
    665,488.28x = 349,488,500,893.54
  5. Step 5: Solve for x
    x = 349,488,500,893.54/665,488.28
  6. Step 6: Final answer
    x = 525,161.02

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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.