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Finding the Fourth Proportional to 830,589, 1,245,032.37 and 630,485.79

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Solution

The fourth proportional to 830,589, 1,245,032.37 and 630,485.79 is: 945,082.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,589 : 1,245,032.37 = 630,485.79 : x
  2. Step 2: Convert to fraction form
    830,589/1,245,032.37 = 630,485.79/x
  3. Step 3: Cross multiply
    830,589x = 1,245,032.37 × 630,485.79
  4. Step 4: Simplify right side
    830,589x = 784,975,217,375.02
  5. Step 5: Solve for x
    x = 784,975,217,375.02/830,589
  6. Step 6: Final answer
    x = 945,082.61

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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.