Home / 979,962.20-1,352,664.88-635,189.76

Finding the Fourth Proportional to 979,962.20, 1,352,664.88 and 635,189.76

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Solution

The fourth proportional to 979,962.20, 1,352,664.88 and 635,189.76 is: 876,767.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,962.20 : 1,352,664.88 = 635,189.76 : x
  2. Step 2: Convert to fraction form
    979,962.20/1,352,664.88 = 635,189.76/x
  3. Step 3: Cross multiply
    979,962.20x = 1,352,664.88 × 635,189.76
  4. Step 4: Simplify right side
    979,962.20x = 859,198,880,487.63
  5. Step 5: Solve for x
    x = 859,198,880,487.63/979,962.20
  6. Step 6: Final answer
    x = 876,767.37

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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.