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Finding the Fourth Proportional to 539,317.56, 744,109.74 and 324,427.80

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Solution

The fourth proportional to 539,317.56, 744,109.74 and 324,427.80 is: 447,621.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,317.56 : 744,109.74 = 324,427.80 : x
  2. Step 2: Convert to fraction form
    539,317.56/744,109.74 = 324,427.80/x
  3. Step 3: Cross multiply
    539,317.56x = 744,109.74 × 324,427.80
  4. Step 4: Simplify right side
    539,317.56x = 241,409,885,906.77
  5. Step 5: Solve for x
    x = 241,409,885,906.77/539,317.56
  6. Step 6: Final answer
    x = 447,621.04

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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.