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Finding the Fourth Proportional to 628,793.30, 942,597.03 and 312,951.62

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Solution

The fourth proportional to 628,793.30, 942,597.03 and 312,951.62 is: 469,132.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,793.30 : 942,597.03 = 312,951.62 : x
  2. Step 2: Convert to fraction form
    628,793.30/942,597.03 = 312,951.62/x
  3. Step 3: Cross multiply
    628,793.30x = 942,597.03 × 312,951.62
  4. Step 4: Simplify right side
    628,793.30x = 294,987,267,545.69
  5. Step 5: Solve for x
    x = 294,987,267,545.69/628,793.30
  6. Step 6: Final answer
    x = 469,132.33

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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.