Home / 781,928.83-1,172,989.83-276,385.56

Finding the Fourth Proportional to 781,928.83, 1,172,989.83 and 276,385.56

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Solution

The fourth proportional to 781,928.83, 1,172,989.83 and 276,385.56 is: 414,612.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,928.83 : 1,172,989.83 = 276,385.56 : x
  2. Step 2: Convert to fraction form
    781,928.83/1,172,989.83 = 276,385.56/x
  3. Step 3: Cross multiply
    781,928.83x = 1,172,989.83 × 276,385.56
  4. Step 4: Simplify right side
    781,928.83x = 324,197,451,038.86
  5. Step 5: Solve for x
    x = 324,197,451,038.86/781,928.83
  6. Step 6: Final answer
    x = 414,612.48

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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.