Home / 1,425,476.72-1,967,206.86-780,896.75

Finding the Fourth Proportional to 1,425,476.72, 1,967,206.86 and 780,896.75

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Solution

The fourth proportional to 1,425,476.72, 1,967,206.86 and 780,896.75 is: 1,077,664.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,476.72 : 1,967,206.86 = 780,896.75 : x
  2. Step 2: Convert to fraction form
    1,425,476.72/1,967,206.86 = 780,896.75/x
  3. Step 3: Cross multiply
    1,425,476.72x = 1,967,206.86 × 780,896.75
  4. Step 4: Simplify right side
    1,425,476.72x = 1,536,185,443,551.71
  5. Step 5: Solve for x
    x = 1,536,185,443,551.71/1,425,476.72
  6. Step 6: Final answer
    x = 1,077,664.35

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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.