Home / 827,004.42-1,240,755.66-258,362.55

Finding the Fourth Proportional to 827,004.42, 1,240,755.66 and 258,362.55

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Solution

The fourth proportional to 827,004.42, 1,240,755.66 and 258,362.55 is: 387,621.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,004.42 : 1,240,755.66 = 258,362.55 : x
  2. Step 2: Convert to fraction form
    827,004.42/1,240,755.66 = 258,362.55/x
  3. Step 3: Cross multiply
    827,004.42x = 1,240,755.66 × 258,362.55
  4. Step 4: Simplify right side
    827,004.42x = 320,564,796,244.53
  5. Step 5: Solve for x
    x = 320,564,796,244.53/827,004.42
  6. Step 6: Final answer
    x = 387,621.62

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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.