Home / 548,714.40-824,821.20-517,221.60

Finding the Fourth Proportional to 548,714.40, 824,821.20 and 517,221.60

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Solution

The fourth proportional to 548,714.40, 824,821.20 and 517,221.60 is: 777,481.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,714.40 : 824,821.20 = 517,221.60 : x
  2. Step 2: Convert to fraction form
    548,714.40/824,821.20 = 517,221.60/x
  3. Step 3: Cross multiply
    548,714.40x = 824,821.20 × 517,221.60
  4. Step 4: Simplify right side
    548,714.40x = 426,615,340,777.92
  5. Step 5: Solve for x
    x = 426,615,340,777.92/548,714.40
  6. Step 6: Final answer
    x = 777,481.58

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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.