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Finding the Fourth Proportional to 486,003.46, 728,931.26 and 186,625.04

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Solution

The fourth proportional to 486,003.46, 728,931.26 and 186,625.04 is: 279,909.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,003.46 : 728,931.26 = 186,625.04 : x
  2. Step 2: Convert to fraction form
    486,003.46/728,931.26 = 186,625.04/x
  3. Step 3: Cross multiply
    486,003.46x = 728,931.26 × 186,625.04
  4. Step 4: Simplify right side
    486,003.46x = 136,036,825,554.75
  5. Step 5: Solve for x
    x = 136,036,825,554.75/486,003.46
  6. Step 6: Final answer
    x = 279,909.17

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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.