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Finding the Fourth Proportional to 529,866.96, 730,840.32 and 325,649.68

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Solution

The fourth proportional to 529,866.96, 730,840.32 and 325,649.68 is: 449,165.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,866.96 : 730,840.32 = 325,649.68 : x
  2. Step 2: Convert to fraction form
    529,866.96/730,840.32 = 325,649.68/x
  3. Step 3: Cross multiply
    529,866.96x = 730,840.32 × 325,649.68
  4. Step 4: Simplify right side
    529,866.96x = 237,997,912,684.90
  5. Step 5: Solve for x
    x = 237,997,912,684.90/529,866.96
  6. Step 6: Final answer
    x = 449,165.41

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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.