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Finding the Fourth Proportional to 707,422.88, 976,892.00 and 449,383.00

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Solution

The fourth proportional to 707,422.88, 976,892.00 and 449,383.00 is: 620,560.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,422.88 : 976,892.00 = 449,383.00 : x
  2. Step 2: Convert to fraction form
    707,422.88/976,892.00 = 449,383.00/x
  3. Step 3: Cross multiply
    707,422.88x = 976,892.00 × 449,383.00
  4. Step 4: Simplify right side
    707,422.88x = 438,998,650,504.63
  5. Step 5: Solve for x
    x = 438,998,650,504.63/707,422.88
  6. Step 6: Final answer
    x = 620,560.44

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Double scale
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1.5x scale

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.