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Finding the Fourth Proportional to 405,707.73, 608,860.28 and 192,476.04

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Solution

The fourth proportional to 405,707.73, 608,860.28 and 192,476.04 is: 288,855.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,707.73 : 608,860.28 = 192,476.04 : x
  2. Step 2: Convert to fraction form
    405,707.73/608,860.28 = 192,476.04/x
  3. Step 3: Cross multiply
    405,707.73x = 608,860.28 × 192,476.04
  4. Step 4: Simplify right side
    405,707.73x = 117,191,015,607.69
  5. Step 5: Solve for x
    x = 117,191,015,607.69/405,707.73
  6. Step 6: Final answer
    x = 288,855.76

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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.