Home / 1,297,059.02-1,790,419.12-780,836.92

Finding the Fourth Proportional to 1,297,059.02, 1,790,419.12 and 780,836.92

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Solution

The fourth proportional to 1,297,059.02, 1,790,419.12 and 780,836.92 is: 1,077,842.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,297,059.02 : 1,790,419.12 = 780,836.92 : x
  2. Step 2: Convert to fraction form
    1,297,059.02/1,790,419.12 = 780,836.92/x
  3. Step 3: Cross multiply
    1,297,059.02x = 1,790,419.12 × 780,836.92
  4. Step 4: Simplify right side
    1,297,059.02x = 1,398,025,351,169.91
  5. Step 5: Solve for x
    x = 1,398,025,351,169.91/1,297,059.02
  6. Step 6: Final answer
    x = 1,077,842.51

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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.