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Finding the Fourth Proportional to 603,963.45, 905,280.69 and 248,783.70

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Solution

The fourth proportional to 603,963.45, 905,280.69 and 248,783.70 is: 372,901.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,963.45 : 905,280.69 = 248,783.70 : x
  2. Step 2: Convert to fraction form
    603,963.45/905,280.69 = 248,783.70/x
  3. Step 3: Cross multiply
    603,963.45x = 905,280.69 × 248,783.70
  4. Step 4: Simplify right side
    603,963.45x = 225,219,079,596.75
  5. Step 5: Solve for x
    x = 225,219,079,596.75/603,963.45
  6. Step 6: Final answer
    x = 372,901.84

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1.5x scale

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.