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Finding the Fourth Proportional to 529,908.48, 731,099.52 and 328,665.60

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Solution

The fourth proportional to 529,908.48, 731,099.52 and 328,665.60 is: 453,450.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,908.48 : 731,099.52 = 328,665.60 : x
  2. Step 2: Convert to fraction form
    529,908.48/731,099.52 = 328,665.60/x
  3. Step 3: Cross multiply
    529,908.48x = 731,099.52 × 328,665.60
  4. Step 4: Simplify right side
    529,908.48x = 240,287,262,400.51
  5. Step 5: Solve for x
    x = 240,287,262,400.51/529,908.48
  6. Step 6: Final answer
    x = 453,450.49

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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.