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Finding the Fourth Proportional to 437,460.60, 654,441.30 and 378,946.20

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Solution

The fourth proportional to 437,460.60, 654,441.30 and 378,946.20 is: 566,903.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,460.60 : 654,441.30 = 378,946.20 : x
  2. Step 2: Convert to fraction form
    437,460.60/654,441.30 = 378,946.20/x
  3. Step 3: Cross multiply
    437,460.60x = 654,441.30 × 378,946.20
  4. Step 4: Simplify right side
    437,460.60x = 247,998,043,758.06
  5. Step 5: Solve for x
    x = 247,998,043,758.06/437,460.60
  6. Step 6: Final answer
    x = 566,903.73

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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.