Home / 1,278,455.55-1,764,354.20-734,767.35

Finding the Fourth Proportional to 1,278,455.55, 1,764,354.20 and 734,767.35

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Solution

The fourth proportional to 1,278,455.55, 1,764,354.20 and 734,767.35 is: 1,014,028.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,455.55 : 1,764,354.20 = 734,767.35 : x
  2. Step 2: Convert to fraction form
    1,278,455.55/1,764,354.20 = 734,767.35/x
  3. Step 3: Cross multiply
    1,278,455.55x = 1,764,354.20 × 734,767.35
  4. Step 4: Simplify right side
    1,278,455.55x = 1,296,389,856,321.53
  5. Step 5: Solve for x
    x = 1,296,389,856,321.53/1,278,455.55
  6. Step 6: Final answer
    x = 1,014,028.10

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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.