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Finding the Fourth Proportional to 525,885.60, 789,022.80 and 210,568.80

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Solution

The fourth proportional to 525,885.60, 789,022.80 and 210,568.80 is: 315,931.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,885.60 : 789,022.80 = 210,568.80 : x
  2. Step 2: Convert to fraction form
    525,885.60/789,022.80 = 210,568.80/x
  3. Step 3: Cross multiply
    525,885.60x = 789,022.80 × 210,568.80
  4. Step 4: Simplify right side
    525,885.60x = 166,143,584,168.64
  5. Step 5: Solve for x
    x = 166,143,584,168.64/525,885.60
  6. Step 6: Final answer
    x = 315,931.04

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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.