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Finding the Fourth Proportional to 529,415.38, 730,706.03 and 325,638.01

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Solution

The fourth proportional to 529,415.38, 730,706.03 and 325,638.01 is: 449,449.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,415.38 : 730,706.03 = 325,638.01 : x
  2. Step 2: Convert to fraction form
    529,415.38/730,706.03 = 325,638.01/x
  3. Step 3: Cross multiply
    529,415.38x = 730,706.03 × 325,638.01
  4. Step 4: Simplify right side
    529,415.38x = 237,945,657,504.20
  5. Step 5: Solve for x
    x = 237,945,657,504.20/529,415.38
  6. Step 6: Final answer
    x = 449,449.84

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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.