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Finding the Fourth Proportional to 520,548.48, 780,753.60 and 146,600.64

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Solution

The fourth proportional to 520,548.48, 780,753.60 and 146,600.64 is: 219,881.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,548.48 : 780,753.60 = 146,600.64 : x
  2. Step 2: Convert to fraction form
    520,548.48/780,753.60 = 146,600.64/x
  3. Step 3: Cross multiply
    520,548.48x = 780,753.60 × 146,600.64
  4. Step 4: Simplify right side
    520,548.48x = 114,458,977,442.30
  5. Step 5: Solve for x
    x = 114,458,977,442.30/520,548.48
  6. Step 6: Final answer
    x = 219,881.49

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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.