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Finding the Fourth Proportional to 450,314.76, 676,244.88 and 399,827.88

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Solution

The fourth proportional to 450,314.76, 676,244.88 and 399,827.88 is: 600,427.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,314.76 : 676,244.88 = 399,827.88 : x
  2. Step 2: Convert to fraction form
    450,314.76/676,244.88 = 399,827.88/x
  3. Step 3: Cross multiply
    450,314.76x = 676,244.88 × 399,827.88
  4. Step 4: Simplify right side
    450,314.76x = 270,381,556,731.25
  5. Step 5: Solve for x
    x = 270,381,556,731.25/450,314.76
  6. Step 6: Final answer
    x = 600,427.92

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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.