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Finding the Fourth Proportional to 541,123.20, 810,518.40 and 482,025.60

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Solution

The fourth proportional to 541,123.20, 810,518.40 and 482,025.60 is: 721,999.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,123.20 : 810,518.40 = 482,025.60 : x
  2. Step 2: Convert to fraction form
    541,123.20/810,518.40 = 482,025.60/x
  3. Step 3: Cross multiply
    541,123.20x = 810,518.40 × 482,025.60
  4. Step 4: Simplify right side
    541,123.20x = 390,690,618,071.04
  5. Step 5: Solve for x
    x = 390,690,618,071.04/541,123.20
  6. Step 6: Final answer
    x = 721,999.39

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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.