Home / 1,187,004.99-1,638,147.26-670,579.77

Finding the Fourth Proportional to 1,187,004.99, 1,638,147.26 and 670,579.77

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Solution

The fourth proportional to 1,187,004.99, 1,638,147.26 and 670,579.77 is: 925,445.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,004.99 : 1,638,147.26 = 670,579.77 : x
  2. Step 2: Convert to fraction form
    1,187,004.99/1,638,147.26 = 670,579.77/x
  3. Step 3: Cross multiply
    1,187,004.99x = 1,638,147.26 × 670,579.77
  4. Step 4: Simplify right side
    1,187,004.99x = 1,098,508,412,836.93
  5. Step 5: Solve for x
    x = 1,098,508,412,836.93/1,187,004.99
  6. Step 6: Final answer
    x = 925,445.49

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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.