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Finding the Fourth Proportional to 579,801.25, 800,213.21 and 353,577.97

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Solution

The fourth proportional to 579,801.25, 800,213.21 and 353,577.97 is: 487,990.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,801.25 : 800,213.21 = 353,577.97 : x
  2. Step 2: Convert to fraction form
    579,801.25/800,213.21 = 353,577.97/x
  3. Step 3: Cross multiply
    579,801.25x = 800,213.21 × 353,577.97
  4. Step 4: Simplify right side
    579,801.25x = 282,937,762,358.98
  5. Step 5: Solve for x
    x = 282,937,762,358.98/579,801.25
  6. Step 6: Final answer
    x = 487,990.95

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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.