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Finding the Fourth Proportional to 889,406, 1,227,371.76 and 481,497.39

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Solution

The fourth proportional to 889,406, 1,227,371.76 and 481,497.39 is: 664,461.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,406 : 1,227,371.76 = 481,497.39 : x
  2. Step 2: Convert to fraction form
    889,406/1,227,371.76 = 481,497.39/x
  3. Step 3: Cross multiply
    889,406x = 1,227,371.76 × 481,497.39
  4. Step 4: Simplify right side
    889,406x = 590,976,298,999.71
  5. Step 5: Solve for x
    x = 590,976,298,999.71/889,406
  6. Step 6: Final answer
    x = 664,461.79

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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.