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Finding the Fourth Proportional to 529,269.98, 730,388.62 and 287,554.54

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Solution

The fourth proportional to 529,269.98, 730,388.62 and 287,554.54 is: 396,823.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,269.98 : 730,388.62 = 287,554.54 : x
  2. Step 2: Convert to fraction form
    529,269.98/730,388.62 = 287,554.54/x
  3. Step 3: Cross multiply
    529,269.98x = 730,388.62 × 287,554.54
  4. Step 4: Simplify right side
    529,269.98x = 210,026,563,645.34
  5. Step 5: Solve for x
    x = 210,026,563,645.34/529,269.98
  6. Step 6: Final answer
    x = 396,823.12

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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.