Home / 1,212,075.78-1,672,676.19-668,231.46

Finding the Fourth Proportional to 1,212,075.78, 1,672,676.19 and 668,231.46

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Solution

The fourth proportional to 1,212,075.78, 1,672,676.19 and 668,231.46 is: 922,165.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,075.78 : 1,672,676.19 = 668,231.46 : x
  2. Step 2: Convert to fraction form
    1,212,075.78/1,672,676.19 = 668,231.46/x
  3. Step 3: Cross multiply
    1,212,075.78x = 1,672,676.19 × 668,231.46
  4. Step 4: Simplify right side
    1,212,075.78x = 1,117,734,852,550.94
  5. Step 5: Solve for x
    x = 1,117,734,852,550.94/1,212,075.78
  6. Step 6: Final answer
    x = 922,165.82

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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.