Home / 1,687,703.34-2,329,362.60-1,279,092.47

Finding the Fourth Proportional to 1,687,703.34, 2,329,362.60 and 1,279,092.47

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Solution

The fourth proportional to 1,687,703.34, 2,329,362.60 and 1,279,092.47 is: 1,765,399.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,703.34 : 2,329,362.60 = 1,279,092.47 : x
  2. Step 2: Convert to fraction form
    1,687,703.34/2,329,362.60 = 1,279,092.47/x
  3. Step 3: Cross multiply
    1,687,703.34x = 2,329,362.60 × 1,279,092.47
  4. Step 4: Simplify right side
    1,687,703.34x = 2,979,470,149,912.81
  5. Step 5: Solve for x
    x = 2,979,470,149,912.81/1,687,703.34
  6. Step 6: Final answer
    x = 1,765,399.21

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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.