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Finding the Fourth Proportional to 515,009.10, 773,145.45 and 325,469.10

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Solution

The fourth proportional to 515,009.10, 773,145.45 and 325,469.10 is: 488,602.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,009.10 : 773,145.45 = 325,469.10 : x
  2. Step 2: Convert to fraction form
    515,009.10/773,145.45 = 325,469.10/x
  3. Step 3: Cross multiply
    515,009.10x = 773,145.45 × 325,469.10
  4. Step 4: Simplify right side
    515,009.10x = 251,634,953,780.60
  5. Step 5: Solve for x
    x = 251,634,953,780.60/515,009.10
  6. Step 6: Final answer
    x = 488,602.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.