Home / 1,269,435.92-1,904,160.40-427,994.96

Finding the Fourth Proportional to 1,269,435.92, 1,904,160.40 and 427,994.96

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Solution

The fourth proportional to 1,269,435.92, 1,904,160.40 and 427,994.96 is: 641,994.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,435.92 : 1,904,160.40 = 427,994.96 : x
  2. Step 2: Convert to fraction form
    1,269,435.92/1,904,160.40 = 427,994.96/x
  3. Step 3: Cross multiply
    1,269,435.92x = 1,904,160.40 × 427,994.96
  4. Step 4: Simplify right side
    1,269,435.92x = 814,971,054,231.58
  5. Step 5: Solve for x
    x = 814,971,054,231.58/1,269,435.92
  6. Step 6: Final answer
    x = 641,994.64

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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.