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Finding the Fourth Proportional to 529,910.48, 731,102.28 and 328,667.60

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Solution

The fourth proportional to 529,910.48, 731,102.28 and 328,667.60 is: 453,453.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,910.48 : 731,102.28 = 328,667.60 : x
  2. Step 2: Convert to fraction form
    529,910.48/731,102.28 = 328,667.60/x
  3. Step 3: Cross multiply
    529,910.48x = 731,102.28 × 328,667.60
  4. Step 4: Simplify right side
    529,910.48x = 240,289,631,722.13
  5. Step 5: Solve for x
    x = 240,289,631,722.13/529,910.48
  6. Step 6: Final answer
    x = 453,453.25

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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.