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Finding the Fourth Proportional to 664,413.60, 996,620.40 and 531,553.35

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Solution

The fourth proportional to 664,413.60, 996,620.40 and 531,553.35 is: 797,330.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,413.60 : 996,620.40 = 531,553.35 : x
  2. Step 2: Convert to fraction form
    664,413.60/996,620.40 = 531,553.35/x
  3. Step 3: Cross multiply
    664,413.60x = 996,620.40 × 531,553.35
  4. Step 4: Simplify right side
    664,413.60x = 529,756,912,298.34
  5. Step 5: Solve for x
    x = 529,756,912,298.34/664,413.60
  6. Step 6: Final answer
    x = 797,330.03

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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.