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Finding the Fourth Proportional to 521,506.80, 781,093.80 and 451,522.80

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Solution

The fourth proportional to 521,506.80, 781,093.80 and 451,522.80 is: 676,274.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,506.80 : 781,093.80 = 451,522.80 : x
  2. Step 2: Convert to fraction form
    521,506.80/781,093.80 = 451,522.80/x
  3. Step 3: Cross multiply
    521,506.80x = 781,093.80 × 451,522.80
  4. Step 4: Simplify right side
    521,506.80x = 352,681,659,638.64
  5. Step 5: Solve for x
    x = 352,681,659,638.64/521,506.80
  6. Step 6: Final answer
    x = 676,274.33

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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.