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Finding the Fourth Proportional to 526,649.58, 789,593.67 and 312,910.56

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Solution

The fourth proportional to 526,649.58, 789,593.67 and 312,910.56 is: 469,139.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,649.58 : 789,593.67 = 312,910.56 : x
  2. Step 2: Convert to fraction form
    526,649.58/789,593.67 = 312,910.56/x
  3. Step 3: Cross multiply
    526,649.58x = 789,593.67 × 312,910.56
  4. Step 4: Simplify right side
    526,649.58x = 247,072,197,452.16
  5. Step 5: Solve for x
    x = 247,072,197,452.16/526,649.58
  6. Step 6: Final answer
    x = 469,139.65

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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.