Home / 681,657.40-1,022,639.70-401,030.20

Finding the Fourth Proportional to 681,657.40, 1,022,639.70 and 401,030.20

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Solution

The fourth proportional to 681,657.40, 1,022,639.70 and 401,030.20 is: 601,635.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,657.40 : 1,022,639.70 = 401,030.20 : x
  2. Step 2: Convert to fraction form
    681,657.40/1,022,639.70 = 401,030.20/x
  3. Step 3: Cross multiply
    681,657.40x = 1,022,639.70 × 401,030.20
  4. Step 4: Simplify right side
    681,657.40x = 410,109,403,418.94
  5. Step 5: Solve for x
    x = 410,109,403,418.94/681,657.40
  6. Step 6: Final answer
    x = 601,635.67

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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.