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Finding the Fourth Proportional to 654,549.78, 982,108.98 and 355,241.82

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Solution

The fourth proportional to 654,549.78, 982,108.98 and 355,241.82 is: 533,017.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,549.78 : 982,108.98 = 355,241.82 : x
  2. Step 2: Convert to fraction form
    654,549.78/982,108.98 = 355,241.82/x
  3. Step 3: Cross multiply
    654,549.78x = 982,108.98 × 355,241.82
  4. Step 4: Simplify right side
    654,549.78x = 348,886,181,493.54
  5. Step 5: Solve for x
    x = 348,886,181,493.54/654,549.78
  6. Step 6: Final answer
    x = 533,017.03

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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.