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Finding the Fourth Proportional to 486,064.60, 729,096.90 and 308,771.80

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Solution

The fourth proportional to 486,064.60, 729,096.90 and 308,771.80 is: 463,157.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,064.60 : 729,096.90 = 308,771.80 : x
  2. Step 2: Convert to fraction form
    486,064.60/729,096.90 = 308,771.80/x
  3. Step 3: Cross multiply
    486,064.60x = 729,096.90 × 308,771.80
  4. Step 4: Simplify right side
    486,064.60x = 225,124,562,187.42
  5. Step 5: Solve for x
    x = 225,124,562,187.42/486,064.60
  6. Step 6: Final answer
    x = 463,157.70

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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.