Home / 1,212,080.28-1,672,682.40-668,235.96

Finding the Fourth Proportional to 1,212,080.28, 1,672,682.40 and 668,235.96

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Solution

The fourth proportional to 1,212,080.28, 1,672,682.40 and 668,235.96 is: 922,172.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,080.28 : 1,672,682.40 = 668,235.96 : x
  2. Step 2: Convert to fraction form
    1,212,080.28/1,672,682.40 = 668,235.96/x
  3. Step 3: Cross multiply
    1,212,080.28x = 1,672,682.40 × 668,235.96
  4. Step 4: Simplify right side
    1,212,080.28x = 1,117,746,529,339.10
  5. Step 5: Solve for x
    x = 1,117,746,529,339.10/1,212,080.28
  6. Step 6: Final answer
    x = 922,172.03

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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.