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Finding the Fourth Proportional to 529,362.03, 730,523.98 and 287,644.60

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Solution

The fourth proportional to 529,362.03, 730,523.98 and 287,644.60 is: 396,951.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,362.03 : 730,523.98 = 287,644.60 : x
  2. Step 2: Convert to fraction form
    529,362.03/730,523.98 = 287,644.60/x
  3. Step 3: Cross multiply
    529,362.03x = 730,523.98 × 287,644.60
  4. Step 4: Simplify right side
    529,362.03x = 210,131,278,017.51
  5. Step 5: Solve for x
    x = 210,131,278,017.51/529,362.03
  6. Step 6: Final answer
    x = 396,951.93

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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.