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Finding the Fourth Proportional to 486,346.88, 729,126.66 and 186,674.42

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Solution

The fourth proportional to 486,346.88, 729,126.66 and 186,674.42 is: 279,860.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,346.88 : 729,126.66 = 186,674.42 : x
  2. Step 2: Convert to fraction form
    486,346.88/729,126.66 = 186,674.42/x
  3. Step 3: Cross multiply
    486,346.88x = 729,126.66 × 186,674.42
  4. Step 4: Simplify right side
    486,346.88x = 136,109,296,362.04
  5. Step 5: Solve for x
    x = 136,109,296,362.04/486,346.88
  6. Step 6: Final answer
    x = 279,860.53

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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.