Home / 819,559.82-1,228,638.52-314,483.24

Finding the Fourth Proportional to 819,559.82, 1,228,638.52 and 314,483.24

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Solution

The fourth proportional to 819,559.82, 1,228,638.52 and 314,483.24 is: 471,455.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,559.82 : 1,228,638.52 = 314,483.24 : x
  2. Step 2: Convert to fraction form
    819,559.82/1,228,638.52 = 314,483.24/x
  3. Step 3: Cross multiply
    819,559.82x = 1,228,638.52 × 314,483.24
  4. Step 4: Simplify right side
    819,559.82x = 386,386,222,558.41
  5. Step 5: Solve for x
    x = 386,386,222,558.41/819,559.82
  6. Step 6: Final answer
    x = 471,455.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.