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Finding the Fourth Proportional to 620,642, 930,963 and 226,658

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Solution

The fourth proportional to 620,642, 930,963 and 226,658 is: 339,987

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,642 : 930,963 = 226,658 : x
  2. Step 2: Convert to fraction form
    620,642/930,963 = 226,658/x
  3. Step 3: Cross multiply
    620,642x = 930,963 × 226,658
  4. Step 4: Simplify right side
    620,642x = 211,010,211,654
  5. Step 5: Solve for x
    x = 211,010,211,654/620,642
  6. Step 6: Final answer
    x = 339,987

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