Home / 409,200.20-612,072.30-367,382.60

Finding the Fourth Proportional to 409,200.20, 612,072.30 and 367,382.60

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Solution

The fourth proportional to 409,200.20, 612,072.30 and 367,382.60 is: 549,522.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,200.20 : 612,072.30 = 367,382.60 : x
  2. Step 2: Convert to fraction form
    409,200.20/612,072.30 = 367,382.60/x
  3. Step 3: Cross multiply
    409,200.20x = 612,072.30 × 367,382.60
  4. Step 4: Simplify right side
    409,200.20x = 224,864,712,961.98
  5. Step 5: Solve for x
    x = 224,864,712,961.98/409,200.20
  6. Step 6: Final answer
    x = 549,522.49

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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.