Home / 520,024.20-778,481.10-309,553.80

Finding the Fourth Proportional to 520,024.20, 778,481.10 and 309,553.80

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Solution

The fourth proportional to 520,024.20, 778,481.10 and 309,553.80 is: 463,404.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,024.20 : 778,481.10 = 309,553.80 : x
  2. Step 2: Convert to fraction form
    520,024.20/778,481.10 = 309,553.80/x
  3. Step 3: Cross multiply
    520,024.20x = 778,481.10 × 309,553.80
  4. Step 4: Simplify right side
    520,024.20x = 240,981,782,733.18
  5. Step 5: Solve for x
    x = 240,981,782,733.18/520,024.20
  6. Step 6: Final answer
    x = 463,404.94

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1.5x scale

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.