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Finding the Fourth Proportional to 486,256.37, 728,885.72 and 186,656.27

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Solution

The fourth proportional to 486,256.37, 728,885.72 and 186,656.27 is: 279,792.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,256.37 : 728,885.72 = 186,656.27 : x
  2. Step 2: Convert to fraction form
    486,256.37/728,885.72 = 186,656.27/x
  3. Step 3: Cross multiply
    486,256.37x = 728,885.72 × 186,656.27
  4. Step 4: Simplify right side
    486,256.37x = 136,051,086,573.68
  5. Step 5: Solve for x
    x = 136,051,086,573.68/486,256.37
  6. Step 6: Final answer
    x = 279,792.92

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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.