Home / 1,422,015.46-1,962,301.89-777,307.30

Finding the Fourth Proportional to 1,422,015.46, 1,962,301.89 and 777,307.30

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Solution

The fourth proportional to 1,422,015.46, 1,962,301.89 and 777,307.30 is: 1,072,640.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422,015.46 : 1,962,301.89 = 777,307.30 : x
  2. Step 2: Convert to fraction form
    1,422,015.46/1,962,301.89 = 777,307.30/x
  3. Step 3: Cross multiply
    1,422,015.46x = 1,962,301.89 × 777,307.30
  4. Step 4: Simplify right side
    1,422,015.46x = 1,525,311,583,900.80
  5. Step 5: Solve for x
    x = 1,525,311,583,900.80/1,422,015.46
  6. Step 6: Final answer
    x = 1,072,640.65

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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.