Home / 1,290,933.80-1,934,629.20-816,770.33

Finding the Fourth Proportional to 1,290,933.80, 1,934,629.20 and 816,770.33

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Solution

The fourth proportional to 1,290,933.80, 1,934,629.20 and 816,770.33 is: 1,224,034.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,290,933.80 : 1,934,629.20 = 816,770.33 : x
  2. Step 2: Convert to fraction form
    1,290,933.80/1,934,629.20 = 816,770.33/x
  3. Step 3: Cross multiply
    1,290,933.80x = 1,934,629.20 × 816,770.33
  4. Step 4: Simplify right side
    1,290,933.80x = 1,580,147,730,111.64
  5. Step 5: Solve for x
    x = 1,580,147,730,111.64/1,290,933.80
  6. Step 6: Final answer
    x = 1,224,034.67

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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.