Home / 859,056.30-1,288,584.45-481,142.70

Finding the Fourth Proportional to 859,056.30, 1,288,584.45 and 481,142.70

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Solution

The fourth proportional to 859,056.30, 1,288,584.45 and 481,142.70 is: 721,714.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,056.30 : 1,288,584.45 = 481,142.70 : x
  2. Step 2: Convert to fraction form
    859,056.30/1,288,584.45 = 481,142.70/x
  3. Step 3: Cross multiply
    859,056.30x = 1,288,584.45 × 481,142.70
  4. Step 4: Simplify right side
    859,056.30x = 619,993,001,451.02
  5. Step 5: Solve for x
    x = 619,993,001,451.02/859,056.30
  6. Step 6: Final answer
    x = 721,714.05

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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.