Home / 789,856.80-1,184,785.20-781,983.60

Finding the Fourth Proportional to 789,856.80, 1,184,785.20 and 781,983.60

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Solution

The fourth proportional to 789,856.80, 1,184,785.20 and 781,983.60 is: 1,172,975.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,856.80 : 1,184,785.20 = 781,983.60 : x
  2. Step 2: Convert to fraction form
    789,856.80/1,184,785.20 = 781,983.60/x
  3. Step 3: Cross multiply
    789,856.80x = 1,184,785.20 × 781,983.60
  4. Step 4: Simplify right side
    789,856.80x = 926,482,595,922.72
  5. Step 5: Solve for x
    x = 926,482,595,922.72/789,856.80
  6. Step 6: Final answer
    x = 1,172,975.40

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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.