Home / 1,093,581.90-1,640,372.85-978,436.35

Finding the Fourth Proportional to 1,093,581.90, 1,640,372.85 and 978,436.35

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Solution

The fourth proportional to 1,093,581.90, 1,640,372.85 and 978,436.35 is: 1,467,654.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,581.90 : 1,640,372.85 = 978,436.35 : x
  2. Step 2: Convert to fraction form
    1,093,581.90/1,640,372.85 = 978,436.35/x
  3. Step 3: Cross multiply
    1,093,581.90x = 1,640,372.85 × 978,436.35
  4. Step 4: Simplify right side
    1,093,581.90x = 1,605,000,423,993.10
  5. Step 5: Solve for x
    x = 1,605,000,423,993.10/1,093,581.90
  6. Step 6: Final answer
    x = 1,467,654.53

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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.