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Finding the Fourth Proportional to 407,630.60, 612,029.10 and 289,824.20

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Solution

The fourth proportional to 407,630.60, 612,029.10 and 289,824.20 is: 435,150.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,630.60 : 612,029.10 = 289,824.20 : x
  2. Step 2: Convert to fraction form
    407,630.60/612,029.10 = 289,824.20/x
  3. Step 3: Cross multiply
    407,630.60x = 612,029.10 × 289,824.20
  4. Step 4: Simplify right side
    407,630.60x = 177,380,844,284.22
  5. Step 5: Solve for x
    x = 177,380,844,284.22/407,630.60
  6. Step 6: Final answer
    x = 435,150.95

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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.