Home / 1,212,043.32-1,672,652.46-668,237.88

Finding the Fourth Proportional to 1,212,043.32, 1,672,652.46 and 668,237.88

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Solution

The fourth proportional to 1,212,043.32, 1,672,652.46 and 668,237.88 is: 922,186.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,043.32 : 1,672,652.46 = 668,237.88 : x
  2. Step 2: Convert to fraction form
    1,212,043.32/1,672,652.46 = 668,237.88/x
  3. Step 3: Cross multiply
    1,212,043.32x = 1,672,652.46 × 668,237.88
  4. Step 4: Simplify right side
    1,212,043.32x = 1,117,729,733,847.18
  5. Step 5: Solve for x
    x = 1,117,729,733,847.18/1,212,043.32
  6. Step 6: Final answer
    x = 922,186.29

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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.