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Finding the Fourth Proportional to 407,924.20, 610,676.70 and 303,207.40

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Solution

The fourth proportional to 407,924.20, 610,676.70 and 303,207.40 is: 453,912.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,924.20 : 610,676.70 = 303,207.40 : x
  2. Step 2: Convert to fraction form
    407,924.20/610,676.70 = 303,207.40/x
  3. Step 3: Cross multiply
    407,924.20x = 610,676.70 × 303,207.40
  4. Step 4: Simplify right side
    407,924.20x = 185,161,694,447.58
  5. Step 5: Solve for x
    x = 185,161,694,447.58/407,924.20
  6. Step 6: Final answer
    x = 453,912.01

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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.