Home / 1,613,999.70-2,420,999.55-774,191.70

Finding the Fourth Proportional to 1,613,999.70, 2,420,999.55 and 774,191.70

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Solution

The fourth proportional to 1,613,999.70, 2,420,999.55 and 774,191.70 is: 1,161,287.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613,999.70 : 2,420,999.55 = 774,191.70 : x
  2. Step 2: Convert to fraction form
    1,613,999.70/2,420,999.55 = 774,191.70/x
  3. Step 3: Cross multiply
    1,613,999.70x = 2,420,999.55 × 774,191.70
  4. Step 4: Simplify right side
    1,613,999.70x = 1,874,317,757,313.74
  5. Step 5: Solve for x
    x = 1,874,317,757,313.74/1,613,999.70
  6. Step 6: Final answer
    x = 1,161,287.55

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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.