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Finding the Fourth Proportional to 599,768.13, 899,809.73 and 215,555.76

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Solution

The fourth proportional to 599,768.13, 899,809.73 and 215,555.76 is: 323,390.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,768.13 : 899,809.73 = 215,555.76 : x
  2. Step 2: Convert to fraction form
    599,768.13/899,809.73 = 215,555.76/x
  3. Step 3: Cross multiply
    599,768.13x = 899,809.73 × 215,555.76
  4. Step 4: Simplify right side
    599,768.13x = 193,959,170,205.55
  5. Step 5: Solve for x
    x = 193,959,170,205.55/599,768.13
  6. Step 6: Final answer
    x = 323,390.26

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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.