Home / 1,296,812.32-1,789,899.60-760,441.12

Finding the Fourth Proportional to 1,296,812.32, 1,789,899.60 and 760,441.12

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Solution

The fourth proportional to 1,296,812.32, 1,789,899.60 and 760,441.12 is: 1,049,583.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,812.32 : 1,789,899.60 = 760,441.12 : x
  2. Step 2: Convert to fraction form
    1,296,812.32/1,789,899.60 = 760,441.12/x
  3. Step 3: Cross multiply
    1,296,812.32x = 1,789,899.60 × 760,441.12
  4. Step 4: Simplify right side
    1,296,812.32x = 1,361,113,256,511.55
  5. Step 5: Solve for x
    x = 1,361,113,256,511.55/1,296,812.32
  6. Step 6: Final answer
    x = 1,049,583.84

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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.