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Finding the Fourth Proportional to 525,980.40, 788,452.20 and 259,522.80

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Solution

The fourth proportional to 525,980.40, 788,452.20 and 259,522.80 is: 389,028.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,980.40 : 788,452.20 = 259,522.80 : x
  2. Step 2: Convert to fraction form
    525,980.40/788,452.20 = 259,522.80/x
  3. Step 3: Cross multiply
    525,980.40x = 788,452.20 × 259,522.80
  4. Step 4: Simplify right side
    525,980.40x = 204,621,322,610.16
  5. Step 5: Solve for x
    x = 204,621,322,610.16/525,980.40
  6. Step 6: Final answer
    x = 389,028.42

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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.