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Finding the Fourth Proportional to 529,970.96, 731,359.40 and 303,617.36

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Solution

The fourth proportional to 529,970.96, 731,359.40 and 303,617.36 is: 418,991.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,970.96 : 731,359.40 = 303,617.36 : x
  2. Step 2: Convert to fraction form
    529,970.96/731,359.40 = 303,617.36/x
  3. Step 3: Cross multiply
    529,970.96x = 731,359.40 × 303,617.36
  4. Step 4: Simplify right side
    529,970.96x = 222,053,410,239.18
  5. Step 5: Solve for x
    x = 222,053,410,239.18/529,970.96
  6. Step 6: Final answer
    x = 418,991.66

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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.