Home / 1,100,428.11-1,518,227.78-664,682.67

Finding the Fourth Proportional to 1,100,428.11, 1,518,227.78 and 664,682.67

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Solution

The fourth proportional to 1,100,428.11, 1,518,227.78 and 664,682.67 is: 917,042.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,428.11 : 1,518,227.78 = 664,682.67 : x
  2. Step 2: Convert to fraction form
    1,100,428.11/1,518,227.78 = 664,682.67/x
  3. Step 3: Cross multiply
    1,100,428.11x = 1,518,227.78 × 664,682.67
  4. Step 4: Simplify right side
    1,100,428.11x = 1,009,139,691,155.16
  5. Step 5: Solve for x
    x = 1,009,139,691,155.16/1,100,428.11
  6. Step 6: Final answer
    x = 917,042.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.