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Finding the Fourth Proportional to 441,029.20, 660,231.60 and 291,438.40

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Solution

The fourth proportional to 441,029.20, 660,231.60 and 291,438.40 is: 436,290.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,029.20 : 660,231.60 = 291,438.40 : x
  2. Step 2: Convert to fraction form
    441,029.20/660,231.60 = 291,438.40/x
  3. Step 3: Cross multiply
    441,029.20x = 660,231.60 × 291,438.40
  4. Step 4: Simplify right side
    441,029.20x = 192,416,841,133.44
  5. Step 5: Solve for x
    x = 192,416,841,133.44/441,029.20
  6. Step 6: Final answer
    x = 436,290.48

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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.