Home / 820,464.96-1,230,841.89-280,594.32

Finding the Fourth Proportional to 820,464.96, 1,230,841.89 and 280,594.32

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Solution

The fourth proportional to 820,464.96, 1,230,841.89 and 280,594.32 is: 420,940.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,464.96 : 1,230,841.89 = 280,594.32 : x
  2. Step 2: Convert to fraction form
    820,464.96/1,230,841.89 = 280,594.32/x
  3. Step 3: Cross multiply
    820,464.96x = 1,230,841.89 × 280,594.32
  4. Step 4: Simplify right side
    820,464.96x = 345,367,243,152.07
  5. Step 5: Solve for x
    x = 345,367,243,152.07/820,464.96
  6. Step 6: Final answer
    x = 420,940.88

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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.