Home / 1,317,405.90-1,818,021.34-713,793.90

Finding the Fourth Proportional to 1,317,405.90, 1,818,021.34 and 713,793.90

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Solution

The fourth proportional to 1,317,405.90, 1,818,021.34 and 713,793.90 is: 985,036.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,405.90 : 1,818,021.34 = 713,793.90 : x
  2. Step 2: Convert to fraction form
    1,317,405.90/1,818,021.34 = 713,793.90/x
  3. Step 3: Cross multiply
    1,317,405.90x = 1,818,021.34 × 713,793.90
  4. Step 4: Simplify right side
    1,317,405.90x = 1,297,692,542,561.83
  5. Step 5: Solve for x
    x = 1,297,692,542,561.83/1,317,405.90
  6. Step 6: Final answer
    x = 985,036.23

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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.