Home / 915,911.70-1,373,227.55-541,742.10

Finding the Fourth Proportional to 915,911.70, 1,373,227.55 and 541,742.10

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Solution

The fourth proportional to 915,911.70, 1,373,227.55 and 541,742.10 is: 812,234.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,911.70 : 1,373,227.55 = 541,742.10 : x
  2. Step 2: Convert to fraction form
    915,911.70/1,373,227.55 = 541,742.10/x
  3. Step 3: Cross multiply
    915,911.70x = 1,373,227.55 × 541,742.10
  4. Step 4: Simplify right side
    915,911.70x = 743,935,176,714.86
  5. Step 5: Solve for x
    x = 743,935,176,714.86/915,911.70
  6. Step 6: Final answer
    x = 812,234.60

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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.