Home / 1,425,221.22-2,137,779.99-427,923.30

Finding the Fourth Proportional to 1,425,221.22, 2,137,779.99 and 427,923.30

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Solution

The fourth proportional to 1,425,221.22, 2,137,779.99 and 427,923.30 is: 641,869.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,221.22 : 2,137,779.99 = 427,923.30 : x
  2. Step 2: Convert to fraction form
    1,425,221.22/2,137,779.99 = 427,923.30/x
  3. Step 3: Cross multiply
    1,425,221.22x = 2,137,779.99 × 427,923.30
  4. Step 4: Simplify right side
    1,425,221.22x = 914,805,867,994.77
  5. Step 5: Solve for x
    x = 914,805,867,994.77/1,425,221.22
  6. Step 6: Final answer
    x = 641,869.39

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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.