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Finding the Fourth Proportional to 481,809.70, 722,714.55 and 432,043.30

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Solution

The fourth proportional to 481,809.70, 722,714.55 and 432,043.30 is: 648,064.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,809.70 : 722,714.55 = 432,043.30 : x
  2. Step 2: Convert to fraction form
    481,809.70/722,714.55 = 432,043.30/x
  3. Step 3: Cross multiply
    481,809.70x = 722,714.55 × 432,043.30
  4. Step 4: Simplify right side
    481,809.70x = 312,243,979,140.02
  5. Step 5: Solve for x
    x = 312,243,979,140.02/481,809.70
  6. Step 6: Final answer
    x = 648,064.95

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Similar ratio
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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.