Home / 1,057,861.32-1,586,742.72-259,100.57

Finding the Fourth Proportional to 1,057,861.32, 1,586,742.72 and 259,100.57

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Solution

The fourth proportional to 1,057,861.32, 1,586,742.72 and 259,100.57 is: 388,638.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057,861.32 : 1,586,742.72 = 259,100.57 : x
  2. Step 2: Convert to fraction form
    1,057,861.32/1,586,742.72 = 259,100.57/x
  3. Step 3: Cross multiply
    1,057,861.32x = 1,586,742.72 × 259,100.57
  4. Step 4: Simplify right side
    1,057,861.32x = 411,125,946,190.58
  5. Step 5: Solve for x
    x = 411,125,946,190.58/1,057,861.32
  6. Step 6: Final answer
    x = 388,638.79

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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.