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Finding the Fourth Proportional to 520,801.20, 781,201.80 and 363,207.60

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Solution

The fourth proportional to 520,801.20, 781,201.80 and 363,207.60 is: 544,811.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,801.20 : 781,201.80 = 363,207.60 : x
  2. Step 2: Convert to fraction form
    520,801.20/781,201.80 = 363,207.60/x
  3. Step 3: Cross multiply
    520,801.20x = 781,201.80 × 363,207.60
  4. Step 4: Simplify right side
    520,801.20x = 283,738,430,893.68
  5. Step 5: Solve for x
    x = 283,738,430,893.68/520,801.20
  6. Step 6: Final answer
    x = 544,811.40

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Similar ratio
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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.