Home / 1,275,773.94-1,914,846.75-645,140.34

Finding the Fourth Proportional to 1,275,773.94, 1,914,846.75 and 645,140.34

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Solution

The fourth proportional to 1,275,773.94, 1,914,846.75 and 645,140.34 is: 968,310.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,773.94 : 1,914,846.75 = 645,140.34 : x
  2. Step 2: Convert to fraction form
    1,275,773.94/1,914,846.75 = 645,140.34/x
  3. Step 3: Cross multiply
    1,275,773.94x = 1,914,846.75 × 645,140.34
  4. Step 4: Simplify right side
    1,275,773.94x = 1,235,344,883,342.90
  5. Step 5: Solve for x
    x = 1,235,344,883,342.90/1,275,773.94
  6. Step 6: Final answer
    x = 968,310.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.