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Finding the Fourth Proportional to 529,840.08, 731,198.54 and 303,529.32

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Solution

The fourth proportional to 529,840.08, 731,198.54 and 303,529.32 is: 418,881.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,840.08 : 731,198.54 = 303,529.32 : x
  2. Step 2: Convert to fraction form
    529,840.08/731,198.54 = 303,529.32/x
  3. Step 3: Cross multiply
    529,840.08x = 731,198.54 × 303,529.32
  4. Step 4: Simplify right side
    529,840.08x = 221,940,195,631.19
  5. Step 5: Solve for x
    x = 221,940,195,631.19/529,840.08
  6. Step 6: Final answer
    x = 418,881.48

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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.