Home / 876,798.90-1,209,998.61-494,751.96

Finding the Fourth Proportional to 876,798.90, 1,209,998.61 and 494,751.96

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Solution

The fourth proportional to 876,798.90, 1,209,998.61 and 494,751.96 is: 682,766.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,798.90 : 1,209,998.61 = 494,751.96 : x
  2. Step 2: Convert to fraction form
    876,798.90/1,209,998.61 = 494,751.96/x
  3. Step 3: Cross multiply
    876,798.90x = 1,209,998.61 × 494,751.96
  4. Step 4: Simplify right side
    876,798.90x = 598,649,183,894.78
  5. Step 5: Solve for x
    x = 598,649,183,894.78/876,798.90
  6. Step 6: Final answer
    x = 682,766.81

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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.