Home / 915,905.70-1,373,218.55-541,736.10

Finding the Fourth Proportional to 915,905.70, 1,373,218.55 and 541,736.10

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Solution

The fourth proportional to 915,905.70, 1,373,218.55 and 541,736.10 is: 812,225.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,905.70 : 1,373,218.55 = 541,736.10 : x
  2. Step 2: Convert to fraction form
    915,905.70/1,373,218.55 = 541,736.10/x
  3. Step 3: Cross multiply
    915,905.70x = 1,373,218.55 × 541,736.10
  4. Step 4: Simplify right side
    915,905.70x = 743,922,061,724.66
  5. Step 5: Solve for x
    x = 743,922,061,724.66/915,905.70
  6. Step 6: Final answer
    x = 812,225.61

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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.