Home / 1,100,425.86-1,518,224.68-664,680.39

Finding the Fourth Proportional to 1,100,425.86, 1,518,224.68 and 664,680.39

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Solution

The fourth proportional to 1,100,425.86, 1,518,224.68 and 664,680.39 is: 917,039.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,425.86 : 1,518,224.68 = 664,680.39 : x
  2. Step 2: Convert to fraction form
    1,100,425.86/1,518,224.68 = 664,680.39/x
  3. Step 3: Cross multiply
    1,100,425.86x = 1,518,224.68 × 664,680.39
  4. Step 4: Simplify right side
    1,100,425.86x = 1,009,134,172,410.03
  5. Step 5: Solve for x
    x = 1,009,134,172,410.03/1,100,425.86
  6. Step 6: Final answer
    x = 917,039.67

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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.