Home / 809,315.80-1,214,629.80-783,071.80

Finding the Fourth Proportional to 809,315.80, 1,214,629.80 and 783,071.80

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Solution

The fourth proportional to 809,315.80, 1,214,629.80 and 783,071.80 is: 1,175,242.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,315.80 : 1,214,629.80 = 783,071.80 : x
  2. Step 2: Convert to fraction form
    809,315.80/1,214,629.80 = 783,071.80/x
  3. Step 3: Cross multiply
    809,315.80x = 1,214,629.80 × 783,071.80
  4. Step 4: Simplify right side
    809,315.80x = 951,142,343,819.64
  5. Step 5: Solve for x
    x = 951,142,343,819.64/809,315.80
  6. Step 6: Final answer
    x = 1,175,242.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.