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Finding the Fourth Proportional to 538,971.60, 743,779.62 and 324,236.28

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Solution

The fourth proportional to 538,971.60, 743,779.62 and 324,236.28 is: 447,445.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,971.60 : 743,779.62 = 324,236.28 : x
  2. Step 2: Convert to fraction form
    538,971.60/743,779.62 = 324,236.28/x
  3. Step 3: Cross multiply
    538,971.60x = 743,779.62 × 324,236.28
  4. Step 4: Simplify right side
    538,971.60x = 241,160,337,128.61
  5. Step 5: Solve for x
    x = 241,160,337,128.61/538,971.60
  6. Step 6: Final answer
    x = 447,445.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.