Home / 858,844.55-1,288,311.21-219,153.94

Finding the Fourth Proportional to 858,844.55, 1,288,311.21 and 219,153.94

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Solution

The fourth proportional to 858,844.55, 1,288,311.21 and 219,153.94 is: 328,742.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,844.55 : 1,288,311.21 = 219,153.94 : x
  2. Step 2: Convert to fraction form
    858,844.55/1,288,311.21 = 219,153.94/x
  3. Step 3: Cross multiply
    858,844.55x = 1,288,311.21 × 219,153.94
  4. Step 4: Simplify right side
    858,844.55x = 282,338,474,396.89
  5. Step 5: Solve for x
    x = 282,338,474,396.89/858,844.55
  6. Step 6: Final answer
    x = 328,742.23

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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.