Home / 407,961.96-560,991.06-354,152.85

Finding the Fourth Proportional to 407,961.96, 560,991.06 and 354,152.85

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Solution

The fourth proportional to 407,961.96, 560,991.06 and 354,152.85 is: 486,997.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,961.96 : 560,991.06 = 354,152.85 : x
  2. Step 2: Convert to fraction form
    407,961.96/560,991.06 = 354,152.85/x
  3. Step 3: Cross multiply
    407,961.96x = 560,991.06 × 354,152.85
  4. Step 4: Simplify right side
    407,961.96x = 198,676,582,723.52
  5. Step 5: Solve for x
    x = 198,676,582,723.52/407,961.96
  6. Step 6: Final answer
    x = 486,997.81

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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.