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Finding the Fourth Proportional to 436,230.40, 654,345.60 and 378,493.60

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Solution

The fourth proportional to 436,230.40, 654,345.60 and 378,493.60 is: 567,740.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,230.40 : 654,345.60 = 378,493.60 : x
  2. Step 2: Convert to fraction form
    436,230.40/654,345.60 = 378,493.60/x
  3. Step 3: Cross multiply
    436,230.40x = 654,345.60 × 378,493.60
  4. Step 4: Simplify right side
    436,230.40x = 247,665,621,788.16
  5. Step 5: Solve for x
    x = 247,665,621,788.16/436,230.40
  6. Step 6: Final answer
    x = 567,740.40

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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.