Home / 515,082.44-771,627.30-289,758.20

Finding the Fourth Proportional to 515,082.44, 771,627.30 and 289,758.20

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Solution

The fourth proportional to 515,082.44, 771,627.30 and 289,758.20 is: 434,076.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,082.44 : 771,627.30 = 289,758.20 : x
  2. Step 2: Convert to fraction form
    515,082.44/771,627.30 = 289,758.20/x
  3. Step 3: Cross multiply
    515,082.44x = 771,627.30 × 289,758.20
  4. Step 4: Simplify right side
    515,082.44x = 223,585,337,518.86
  5. Step 5: Solve for x
    x = 223,585,337,518.86/515,082.44
  6. Step 6: Final answer
    x = 434,076.80

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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.