Home / 857,420.98-1,183,155.70-494,961.61

Finding the Fourth Proportional to 857,420.98, 1,183,155.70 and 494,961.61

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Solution

The fourth proportional to 857,420.98, 1,183,155.70 and 494,961.61 is: 682,997.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,420.98 : 1,183,155.70 = 494,961.61 : x
  2. Step 2: Convert to fraction form
    857,420.98/1,183,155.70 = 494,961.61/x
  3. Step 3: Cross multiply
    857,420.98x = 1,183,155.70 × 494,961.61
  4. Step 4: Simplify right side
    857,420.98x = 585,616,650,152.68
  5. Step 5: Solve for x
    x = 585,616,650,152.68/857,420.98
  6. Step 6: Final answer
    x = 682,997.81

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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.