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Finding the Fourth Proportional to 521,450.96, 719,612.52 and 340,278.80

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Solution

The fourth proportional to 521,450.96, 719,612.52 and 340,278.80 is: 469,591.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,450.96 : 719,612.52 = 340,278.80 : x
  2. Step 2: Convert to fraction form
    521,450.96/719,612.52 = 340,278.80/x
  3. Step 3: Cross multiply
    521,450.96x = 719,612.52 × 340,278.80
  4. Step 4: Simplify right side
    521,450.96x = 244,868,884,770.58
  5. Step 5: Solve for x
    x = 244,868,884,770.58/521,450.96
  6. Step 6: Final answer
    x = 469,591.40

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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.