Home / 808,383.80-1,212,087.28-322,140.74

Finding the Fourth Proportional to 808,383.80, 1,212,087.28 and 322,140.74

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Solution

The fourth proportional to 808,383.80, 1,212,087.28 and 322,140.74 is: 483,016.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,383.80 : 1,212,087.28 = 322,140.74 : x
  2. Step 2: Convert to fraction form
    808,383.80/1,212,087.28 = 322,140.74/x
  3. Step 3: Cross multiply
    808,383.80x = 1,212,087.28 × 322,140.74
  4. Step 4: Simplify right side
    808,383.80x = 390,462,687,263.35
  5. Step 5: Solve for x
    x = 390,462,687,263.35/808,383.80
  6. Step 6: Final answer
    x = 483,016.47

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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.