Home / 1,093,587.90-1,640,381.85-978,442.35

Finding the Fourth Proportional to 1,093,587.90, 1,640,381.85 and 978,442.35

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Solution

The fourth proportional to 1,093,587.90, 1,640,381.85 and 978,442.35 is: 1,467,663.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,587.90 : 1,640,381.85 = 978,442.35 : x
  2. Step 2: Convert to fraction form
    1,093,587.90/1,640,381.85 = 978,442.35/x
  3. Step 3: Cross multiply
    1,093,587.90x = 1,640,381.85 × 978,442.35
  4. Step 4: Simplify right side
    1,093,587.90x = 1,605,019,072,211.35
  5. Step 5: Solve for x
    x = 1,605,019,072,211.35/1,093,587.90
  6. Step 6: Final answer
    x = 1,467,663.53

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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.