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Finding the Fourth Proportional to 529,803.08, 730,949.32 and 300,335.76

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Solution

The fourth proportional to 529,803.08, 730,949.32 and 300,335.76 is: 414,361.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,803.08 : 730,949.32 = 300,335.76 : x
  2. Step 2: Convert to fraction form
    529,803.08/730,949.32 = 300,335.76/x
  3. Step 3: Cross multiply
    529,803.08x = 730,949.32 × 300,335.76
  4. Step 4: Simplify right side
    529,803.08x = 219,530,219,543.68
  5. Step 5: Solve for x
    x = 219,530,219,543.68/529,803.08
  6. Step 6: Final answer
    x = 414,361.92

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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.