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Finding the Fourth Proportional to 535,972.80, 804,477.60 and 326,020.80

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Solution

The fourth proportional to 535,972.80, 804,477.60 and 326,020.80 is: 489,346.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,972.80 : 804,477.60 = 326,020.80 : x
  2. Step 2: Convert to fraction form
    535,972.80/804,477.60 = 326,020.80/x
  3. Step 3: Cross multiply
    535,972.80x = 804,477.60 × 326,020.80
  4. Step 4: Simplify right side
    535,972.80x = 262,276,430,734.08
  5. Step 5: Solve for x
    x = 262,276,430,734.08/535,972.80
  6. Step 6: Final answer
    x = 489,346.53

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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.