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Finding the Fourth Proportional to 450,305.73, 676,231.34 and 399,818.84

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Solution

The fourth proportional to 450,305.73, 676,231.34 and 399,818.84 is: 600,414.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,305.73 : 676,231.34 = 399,818.84 : x
  2. Step 2: Convert to fraction form
    450,305.73/676,231.34 = 399,818.84/x
  3. Step 3: Cross multiply
    450,305.73x = 676,231.34 × 399,818.84
  4. Step 4: Simplify right side
    450,305.73x = 270,370,024,550.20
  5. Step 5: Solve for x
    x = 270,370,024,550.20/450,305.73
  6. Step 6: Final answer
    x = 600,414.36

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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.