Home / 1,387,502.26-2,081,477.80-427,733.34

Finding the Fourth Proportional to 1,387,502.26, 2,081,477.80 and 427,733.34

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Solution

The fourth proportional to 1,387,502.26, 2,081,477.80 and 427,733.34 is: 641,669.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,502.26 : 2,081,477.80 = 427,733.34 : x
  2. Step 2: Convert to fraction form
    1,387,502.26/2,081,477.80 = 427,733.34/x
  3. Step 3: Cross multiply
    1,387,502.26x = 2,081,477.80 × 427,733.34
  4. Step 4: Simplify right side
    1,387,502.26x = 890,317,451,529.85
  5. Step 5: Solve for x
    x = 890,317,451,529.85/1,387,502.26
  6. Step 6: Final answer
    x = 641,669.19

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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.