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Finding the Fourth Proportional to 658,485.96, 987,050.97 and 258,964.80

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Solution

The fourth proportional to 658,485.96, 987,050.97 and 258,964.80 is: 388,180.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,485.96 : 987,050.97 = 258,964.80 : x
  2. Step 2: Convert to fraction form
    658,485.96/987,050.97 = 258,964.80/x
  3. Step 3: Cross multiply
    658,485.96x = 987,050.97 × 258,964.80
  4. Step 4: Simplify right side
    658,485.96x = 255,611,457,035.86
  5. Step 5: Solve for x
    x = 255,611,457,035.86/658,485.96
  6. Step 6: Final answer
    x = 388,180.57

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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.