Home / 1,317,658.44-1,818,293.13-728,922.69

Finding the Fourth Proportional to 1,317,658.44, 1,818,293.13 and 728,922.69

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Solution

The fourth proportional to 1,317,658.44, 1,818,293.13 and 728,922.69 is: 1,005,871.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,658.44 : 1,818,293.13 = 728,922.69 : x
  2. Step 2: Convert to fraction form
    1,317,658.44/1,818,293.13 = 728,922.69/x
  3. Step 3: Cross multiply
    1,317,658.44x = 1,818,293.13 × 728,922.69
  4. Step 4: Simplify right side
    1,317,658.44x = 1,325,395,119,528.12
  5. Step 5: Solve for x
    x = 1,325,395,119,528.12/1,317,658.44
  6. Step 6: Final answer
    x = 1,005,871.54

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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.