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Finding the Fourth Proportional to 489,660.48, 732,964.32 and 377,048.16

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Solution

The fourth proportional to 489,660.48, 732,964.32 and 377,048.16 is: 564,396.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,660.48 : 732,964.32 = 377,048.16 : x
  2. Step 2: Convert to fraction form
    489,660.48/732,964.32 = 377,048.16/x
  3. Step 3: Cross multiply
    489,660.48x = 732,964.32 × 377,048.16
  4. Step 4: Simplify right side
    489,660.48x = 276,362,848,201.65
  5. Step 5: Solve for x
    x = 276,362,848,201.65/489,660.48
  6. Step 6: Final answer
    x = 564,396.88

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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.