Home / 496,895.78-685,719.45-282,039.45

Finding the Fourth Proportional to 496,895.78, 685,719.45 and 282,039.45

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Solution

The fourth proportional to 496,895.78, 685,719.45 and 282,039.45 is: 389,216.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,895.78 : 685,719.45 = 282,039.45 : x
  2. Step 2: Convert to fraction form
    496,895.78/685,719.45 = 282,039.45/x
  3. Step 3: Cross multiply
    496,895.78x = 685,719.45 × 282,039.45
  4. Step 4: Simplify right side
    496,895.78x = 193,399,936,532.30
  5. Step 5: Solve for x
    x = 193,399,936,532.30/496,895.78
  6. Step 6: Final answer
    x = 389,216.30

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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.