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Finding the Fourth Proportional to 1,213,227, 1,674,253.26 and 676,683

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Solution

The fourth proportional to 1,213,227, 1,674,253.26 and 676,683 is: 933,822.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,227 : 1,674,253.26 = 676,683 : x
  2. Step 2: Convert to fraction form
    1,213,227/1,674,253.26 = 676,683/x
  3. Step 3: Cross multiply
    1,213,227x = 1,674,253.26 × 676,683
  4. Step 4: Simplify right side
    1,213,227x = 1,132,938,718,736.58
  5. Step 5: Solve for x
    x = 1,132,938,718,736.58/1,213,227
  6. Step 6: Final answer
    x = 933,822.54

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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.