Home / 1,321,818.75-1,824,114.74-718,206.75

Finding the Fourth Proportional to 1,321,818.75, 1,824,114.74 and 718,206.75

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Solution

The fourth proportional to 1,321,818.75, 1,824,114.74 and 718,206.75 is: 991,127.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,818.75 : 1,824,114.74 = 718,206.75 : x
  2. Step 2: Convert to fraction form
    1,321,818.75/1,824,114.74 = 718,206.75/x
  3. Step 3: Cross multiply
    1,321,818.75x = 1,824,114.74 × 718,206.75
  4. Step 4: Simplify right side
    1,321,818.75x = 1,310,091,515,451.46
  5. Step 5: Solve for x
    x = 1,310,091,515,451.46/1,321,818.75
  6. Step 6: Final answer
    x = 991,127.96

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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.