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Finding the Fourth Proportional to 529,234, 730,342.92 and 290,770

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Solution

The fourth proportional to 529,234, 730,342.92 and 290,770 is: 401,262.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,234 : 730,342.92 = 290,770 : x
  2. Step 2: Convert to fraction form
    529,234/730,342.92 = 290,770/x
  3. Step 3: Cross multiply
    529,234x = 730,342.92 × 290,770
  4. Step 4: Simplify right side
    529,234x = 212,361,810,848.40
  5. Step 5: Solve for x
    x = 212,361,810,848.40/529,234
  6. Step 6: Final answer
    x = 401,262.60

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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.