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Finding the Fourth Proportional to 528,409.50, 792,147.68 and 404,304.54

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Solution

The fourth proportional to 528,409.50, 792,147.68 and 404,304.54 is: 606,099.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,409.50 : 792,147.68 = 404,304.54 : x
  2. Step 2: Convert to fraction form
    528,409.50/792,147.68 = 404,304.54/x
  3. Step 3: Cross multiply
    528,409.50x = 792,147.68 × 404,304.54
  4. Step 4: Simplify right side
    528,409.50x = 320,268,903,374.47
  5. Step 5: Solve for x
    x = 320,268,903,374.47/528,409.50
  6. Step 6: Final answer
    x = 606,099.82

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1.5x scale

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.