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Finding the Fourth Proportional to 550,003.40, 825,005.10 and 328,819.40

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Solution

The fourth proportional to 550,003.40, 825,005.10 and 328,819.40 is: 493,229.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,003.40 : 825,005.10 = 328,819.40 : x
  2. Step 2: Convert to fraction form
    550,003.40/825,005.10 = 328,819.40/x
  3. Step 3: Cross multiply
    550,003.40x = 825,005.10 × 328,819.40
  4. Step 4: Simplify right side
    550,003.40x = 271,277,681,978.94
  5. Step 5: Solve for x
    x = 271,277,681,978.94/550,003.40
  6. Step 6: Final answer
    x = 493,229.10

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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.