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Finding the Fourth Proportional to 529,058.08, 730,105.49 and 287,345.37

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Solution

The fourth proportional to 529,058.08, 730,105.49 and 287,345.37 is: 396,539.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,058.08 : 730,105.49 = 287,345.37 : x
  2. Step 2: Convert to fraction form
    529,058.08/730,105.49 = 287,345.37/x
  3. Step 3: Cross multiply
    529,058.08x = 730,105.49 × 287,345.37
  4. Step 4: Simplify right side
    529,058.08x = 209,792,432,881.45
  5. Step 5: Solve for x
    x = 209,792,432,881.45/529,058.08
  6. Step 6: Final answer
    x = 396,539.51

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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.