Home / 2,142,720.70-2,956,990.86-1,175,940.94

Finding the Fourth Proportional to 2,142,720.70, 2,956,990.86 and 1,175,940.94

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Solution

The fourth proportional to 2,142,720.70, 2,956,990.86 and 1,175,940.94 is: 1,622,818.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,142,720.70 : 2,956,990.86 = 1,175,940.94 : x
  2. Step 2: Convert to fraction form
    2,142,720.70/2,956,990.86 = 1,175,940.94/x
  3. Step 3: Cross multiply
    2,142,720.70x = 2,956,990.86 × 1,175,940.94
  4. Step 4: Simplify right side
    2,142,720.70x = 3,477,246,611,479.81
  5. Step 5: Solve for x
    x = 3,477,246,611,479.81/2,142,720.70
  6. Step 6: Final answer
    x = 1,622,818.42

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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.