Home / 768,120.70-1,059,710.91-481,141.18

Finding the Fourth Proportional to 768,120.70, 1,059,710.91 and 481,141.18

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Solution

The fourth proportional to 768,120.70, 1,059,710.91 and 481,141.18 is: 663,789.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,120.70 : 1,059,710.91 = 481,141.18 : x
  2. Step 2: Convert to fraction form
    768,120.70/1,059,710.91 = 481,141.18/x
  3. Step 3: Cross multiply
    768,120.70x = 1,059,710.91 × 481,141.18
  4. Step 4: Simplify right side
    768,120.70x = 509,870,553,600.57
  5. Step 5: Solve for x
    x = 509,870,553,600.57/768,120.70
  6. Step 6: Final answer
    x = 663,789.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.