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Finding the Fourth Proportional to 662,028.78, 911,859.42 and 508,773.72

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Solution

The fourth proportional to 662,028.78, 911,859.42 and 508,773.72 is: 700,770.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,028.78 : 911,859.42 = 508,773.72 : x
  2. Step 2: Convert to fraction form
    662,028.78/911,859.42 = 508,773.72/x
  3. Step 3: Cross multiply
    662,028.78x = 911,859.42 × 508,773.72
  4. Step 4: Simplify right side
    662,028.78x = 463,930,109,230.44
  5. Step 5: Solve for x
    x = 463,930,109,230.44/662,028.78
  6. Step 6: Final answer
    x = 700,770.30

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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.