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Finding the Fourth Proportional to 539,442.78, 744,427.37 and 297,725.35

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Solution

The fourth proportional to 539,442.78, 744,427.37 and 297,725.35 is: 410,858.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,442.78 : 744,427.37 = 297,725.35 : x
  2. Step 2: Convert to fraction form
    539,442.78/744,427.37 = 297,725.35/x
  3. Step 3: Cross multiply
    539,442.78x = 744,427.37 × 297,725.35
  4. Step 4: Simplify right side
    539,442.78x = 221,634,895,560.69
  5. Step 5: Solve for x
    x = 221,634,895,560.69/539,442.78
  6. Step 6: Final answer
    x = 410,858.96

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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.