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Finding the Fourth Proportional to 578,494.52, 867,409.54 and 308,289.98

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Solution

The fourth proportional to 578,494.52, 867,409.54 and 308,289.98 is: 462,257.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,494.52 : 867,409.54 = 308,289.98 : x
  2. Step 2: Convert to fraction form
    578,494.52/867,409.54 = 308,289.98/x
  3. Step 3: Cross multiply
    578,494.52x = 867,409.54 × 308,289.98
  4. Step 4: Simplify right side
    578,494.52x = 267,413,669,738.41
  5. Step 5: Solve for x
    x = 267,413,669,738.41/578,494.52
  6. Step 6: Final answer
    x = 462,257.91

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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.