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Finding the Fourth Proportional to 528,513.42, 792,237.96 and 303,806.46

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Solution

The fourth proportional to 528,513.42, 792,237.96 and 303,806.46 is: 455,403.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,513.42 : 792,237.96 = 303,806.46 : x
  2. Step 2: Convert to fraction form
    528,513.42/792,237.96 = 303,806.46/x
  3. Step 3: Cross multiply
    528,513.42x = 792,237.96 × 303,806.46
  4. Step 4: Simplify right side
    528,513.42x = 240,687,010,105.22
  5. Step 5: Solve for x
    x = 240,687,010,105.22/528,513.42
  6. Step 6: Final answer
    x = 455,403.78

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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.