Home / 1,425,396.64-1,967,047.74-780,839.75

Finding the Fourth Proportional to 1,425,396.64, 1,967,047.74 and 780,839.75

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Solution

The fourth proportional to 1,425,396.64, 1,967,047.74 and 780,839.75 is: 1,077,559.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,396.64 : 1,967,047.74 = 780,839.75 : x
  2. Step 2: Convert to fraction form
    1,425,396.64/1,967,047.74 = 780,839.75/x
  3. Step 3: Cross multiply
    1,425,396.64x = 1,967,047.74 × 780,839.75
  4. Step 4: Simplify right side
    1,425,396.64x = 1,535,949,059,392.64
  5. Step 5: Solve for x
    x = 1,535,949,059,392.64/1,425,396.64
  6. Step 6: Final answer
    x = 1,077,559.06

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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.