Home / 1,676,487.72-2,313,604-1,187,333.56

Finding the Fourth Proportional to 1,676,487.72, 2,313,604 and 1,187,333.56

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Solution

The fourth proportional to 1,676,487.72, 2,313,604 and 1,187,333.56 is: 1,638,556.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,676,487.72 : 2,313,604 = 1,187,333.56 : x
  2. Step 2: Convert to fraction form
    1,676,487.72/2,313,604 = 1,187,333.56/x
  3. Step 3: Cross multiply
    1,676,487.72x = 2,313,604 × 1,187,333.56
  4. Step 4: Simplify right side
    1,676,487.72x = 2,747,019,673,750.24
  5. Step 5: Solve for x
    x = 2,747,019,673,750.24/1,676,487.72
  6. Step 6: Final answer
    x = 1,638,556.39

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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.