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Finding the Fourth Proportional to 786,050, 1,179,324.22 and 280,600.14

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Solution

The fourth proportional to 786,050, 1,179,324.22 and 280,600.14 is: 420,989.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,050 : 1,179,324.22 = 280,600.14 : x
  2. Step 2: Convert to fraction form
    786,050/1,179,324.22 = 280,600.14/x
  3. Step 3: Cross multiply
    786,050x = 1,179,324.22 × 280,600.14
  4. Step 4: Simplify right side
    786,050x = 330,918,541,237.39
  5. Step 5: Solve for x
    x = 330,918,541,237.39/786,050
  6. Step 6: Final answer
    x = 420,989.18

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1.5x scale

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.