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Finding the Fourth Proportional to 407,863.80, 610,811.19 and 245,290.32

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Solution

The fourth proportional to 407,863.80, 610,811.19 and 245,290.32 is: 367,343.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,863.80 : 610,811.19 = 245,290.32 : x
  2. Step 2: Convert to fraction form
    407,863.80/610,811.19 = 245,290.32/x
  3. Step 3: Cross multiply
    407,863.80x = 610,811.19 × 245,290.32
  4. Step 4: Simplify right side
    407,863.80x = 149,826,072,254.68
  5. Step 5: Solve for x
    x = 149,826,072,254.68/407,863.80
  6. Step 6: Final answer
    x = 367,343.39

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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.