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Finding the Fourth Proportional to 619,662.54, 928,719.02 and 264,262.08

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Solution

The fourth proportional to 619,662.54, 928,719.02 and 264,262.08 is: 396,062.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,662.54 : 928,719.02 = 264,262.08 : x
  2. Step 2: Convert to fraction form
    619,662.54/928,719.02 = 264,262.08/x
  3. Step 3: Cross multiply
    619,662.54x = 928,719.02 × 264,262.08
  4. Step 4: Simplify right side
    619,662.54x = 245,425,219,960.76
  5. Step 5: Solve for x
    x = 245,425,219,960.76/619,662.54
  6. Step 6: Final answer
    x = 396,062.70

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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.