Home / 681,657.90-1,022,640.45-401,030.70

Finding the Fourth Proportional to 681,657.90, 1,022,640.45 and 401,030.70

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Solution

The fourth proportional to 681,657.90, 1,022,640.45 and 401,030.70 is: 601,636.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,657.90 : 1,022,640.45 = 401,030.70 : x
  2. Step 2: Convert to fraction form
    681,657.90/1,022,640.45 = 401,030.70/x
  3. Step 3: Cross multiply
    681,657.90x = 1,022,640.45 × 401,030.70
  4. Step 4: Simplify right side
    681,657.90x = 410,110,215,511.82
  5. Step 5: Solve for x
    x = 410,110,215,511.82/681,657.90
  6. Step 6: Final answer
    x = 601,636.42

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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.