Home / 1,188,812.28-1,640,560.82-679,525.56

Finding the Fourth Proportional to 1,188,812.28, 1,640,560.82 and 679,525.56

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Solution

The fourth proportional to 1,188,812.28, 1,640,560.82 and 679,525.56 is: 937,745.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,812.28 : 1,640,560.82 = 679,525.56 : x
  2. Step 2: Convert to fraction form
    1,188,812.28/1,640,560.82 = 679,525.56/x
  3. Step 3: Cross multiply
    1,188,812.28x = 1,640,560.82 × 679,525.56
  4. Step 4: Simplify right side
    1,188,812.28x = 1,114,803,009,924.56
  5. Step 5: Solve for x
    x = 1,114,803,009,924.56/1,188,812.28
  6. Step 6: Final answer
    x = 937,745.20

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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.