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Finding the Fourth Proportional to 450,375.46, 620,256.09 and 374,235.46

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Solution

The fourth proportional to 450,375.46, 620,256.09 and 374,235.46 is: 515,396.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,375.46 : 620,256.09 = 374,235.46 : x
  2. Step 2: Convert to fraction form
    450,375.46/620,256.09 = 374,235.46/x
  3. Step 3: Cross multiply
    450,375.46x = 620,256.09 × 374,235.46
  4. Step 4: Simplify right side
    450,375.46x = 232,121,823,158.95
  5. Step 5: Solve for x
    x = 232,121,823,158.95/450,375.46
  6. Step 6: Final answer
    x = 515,396.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.