Home / 1,315,187.63-1,814,958.92-711,575.63

Finding the Fourth Proportional to 1,315,187.63, 1,814,958.92 and 711,575.63

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Solution

The fourth proportional to 1,315,187.63, 1,814,958.92 and 711,575.63 is: 981,974.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,187.63 : 1,814,958.92 = 711,575.63 : x
  2. Step 2: Convert to fraction form
    1,315,187.63/1,814,958.92 = 711,575.63/x
  3. Step 3: Cross multiply
    1,315,187.63x = 1,814,958.92 × 711,575.63
  4. Step 4: Simplify right side
    1,315,187.63x = 1,291,480,529,627.26
  5. Step 5: Solve for x
    x = 1,291,480,529,627.26/1,315,187.63
  6. Step 6: Final answer
    x = 981,974.36

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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.