Home / 1,284,338.69-1,771,164.39-768,008.49

Finding the Fourth Proportional to 1,284,338.69, 1,771,164.39 and 768,008.49

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Solution

The fourth proportional to 1,284,338.69, 1,771,164.39 and 768,008.49 is: 1,059,120.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,338.69 : 1,771,164.39 = 768,008.49 : x
  2. Step 2: Convert to fraction form
    1,284,338.69/1,771,164.39 = 768,008.49/x
  3. Step 3: Cross multiply
    1,284,338.69x = 1,771,164.39 × 768,008.49
  4. Step 4: Simplify right side
    1,284,338.69x = 1,360,269,288,705.67
  5. Step 5: Solve for x
    x = 1,360,269,288,705.67/1,284,338.69
  6. Step 6: Final answer
    x = 1,059,120.39

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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.