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Finding the Fourth Proportional to 662,822.36, 914,403.84 and 447,884

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Solution

The fourth proportional to 662,822.36, 914,403.84 and 447,884 is: 617,883.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,822.36 : 914,403.84 = 447,884 : x
  2. Step 2: Convert to fraction form
    662,822.36/914,403.84 = 447,884/x
  3. Step 3: Cross multiply
    662,822.36x = 914,403.84 × 447,884
  4. Step 4: Simplify right side
    662,822.36x = 409,546,849,474.56
  5. Step 5: Solve for x
    x = 409,546,849,474.56/662,822.36
  6. Step 6: Final answer
    x = 617,883.27

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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.