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Finding the Fourth Proportional to 450,314.23, 676,244.09 and 399,827.34

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Solution

The fourth proportional to 450,314.23, 676,244.09 and 399,827.34 is: 600,427.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,314.23 : 676,244.09 = 399,827.34 : x
  2. Step 2: Convert to fraction form
    450,314.23/676,244.09 = 399,827.34/x
  3. Step 3: Cross multiply
    450,314.23x = 676,244.09 × 399,827.34
  4. Step 4: Simplify right side
    450,314.23x = 270,380,875,695.42
  5. Step 5: Solve for x
    x = 270,380,875,695.42/450,314.23
  6. Step 6: Final answer
    x = 600,427.12

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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.