Home / 1,439,031.14-2,158,170.68-427,880.88

Finding the Fourth Proportional to 1,439,031.14, 2,158,170.68 and 427,880.88

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Solution

The fourth proportional to 1,439,031.14, 2,158,170.68 and 427,880.88 is: 641,709.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,031.14 : 2,158,170.68 = 427,880.88 : x
  2. Step 2: Convert to fraction form
    1,439,031.14/2,158,170.68 = 427,880.88/x
  3. Step 3: Cross multiply
    1,439,031.14x = 2,158,170.68 × 427,880.88
  4. Step 4: Simplify right side
    1,439,031.14x = 923,439,969,748.60
  5. Step 5: Solve for x
    x = 923,439,969,748.60/1,439,031.14
  6. Step 6: Final answer
    x = 641,709.51

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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.