Home / 1,425,217.72-2,137,774.74-427,919.80

Finding the Fourth Proportional to 1,425,217.72, 2,137,774.74 and 427,919.80

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Solution

The fourth proportional to 1,425,217.72, 2,137,774.74 and 427,919.80 is: 641,864.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,217.72 : 2,137,774.74 = 427,919.80 : x
  2. Step 2: Convert to fraction form
    1,425,217.72/2,137,774.74 = 427,919.80/x
  3. Step 3: Cross multiply
    1,425,217.72x = 2,137,774.74 × 427,919.80
  4. Step 4: Simplify right side
    1,425,217.72x = 914,796,139,185.85
  5. Step 5: Solve for x
    x = 914,796,139,185.85/1,425,217.72
  6. Step 6: Final answer
    x = 641,864.14

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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.