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Finding the Fourth Proportional to 804,300.80, 1,205,414.40 and 488,422.40

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Solution

The fourth proportional to 804,300.80, 1,205,414.40 and 488,422.40 is: 732,003.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,300.80 : 1,205,414.40 = 488,422.40 : x
  2. Step 2: Convert to fraction form
    804,300.80/1,205,414.40 = 488,422.40/x
  3. Step 3: Cross multiply
    804,300.80x = 1,205,414.40 × 488,422.40
  4. Step 4: Simplify right side
    804,300.80x = 588,751,394,242.56
  5. Step 5: Solve for x
    x = 588,751,394,242.56/804,300.80
  6. Step 6: Final answer
    x = 732,003.99

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1.5x scale

Why These Related Problems?

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