Home / 1,425,219.22-2,137,776.99-427,921.30

Finding the Fourth Proportional to 1,425,219.22, 2,137,776.99 and 427,921.30

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Solution

The fourth proportional to 1,425,219.22, 2,137,776.99 and 427,921.30 is: 641,866.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,219.22 : 2,137,776.99 = 427,921.30 : x
  2. Step 2: Convert to fraction form
    1,425,219.22/2,137,776.99 = 427,921.30/x
  3. Step 3: Cross multiply
    1,425,219.22x = 2,137,776.99 × 427,921.30
  4. Step 4: Simplify right side
    1,425,219.22x = 914,800,308,670.89
  5. Step 5: Solve for x
    x = 914,800,308,670.89/1,425,219.22
  6. Step 6: Final answer
    x = 641,866.39

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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.