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Finding the Fourth Proportional to 539,478.54, 744,427.36 and 297,745.54

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Solution

The fourth proportional to 539,478.54, 744,427.36 and 297,745.54 is: 410,859.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,478.54 : 744,427.36 = 297,745.54 : x
  2. Step 2: Convert to fraction form
    539,478.54/744,427.36 = 297,745.54/x
  3. Step 3: Cross multiply
    539,478.54x = 744,427.36 × 297,745.54
  4. Step 4: Simplify right side
    539,478.54x = 221,649,926,293.97
  5. Step 5: Solve for x
    x = 221,649,926,293.97/539,478.54
  6. Step 6: Final answer
    x = 410,859.58

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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.