Home / 858,950.21-1,288,423.90-219,253.85

Finding the Fourth Proportional to 858,950.21, 1,288,423.90 and 219,253.85

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Solution

The fourth proportional to 858,950.21, 1,288,423.90 and 219,253.85 is: 328,880.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,950.21 : 1,288,423.90 = 219,253.85 : x
  2. Step 2: Convert to fraction form
    858,950.21/1,288,423.90 = 219,253.85/x
  3. Step 3: Cross multiply
    858,950.21x = 1,288,423.90 × 219,253.85
  4. Step 4: Simplify right side
    858,950.21x = 282,491,893,516.76
  5. Step 5: Solve for x
    x = 282,491,893,516.76/858,950.21
  6. Step 6: Final answer
    x = 328,880.41

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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.