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Finding the Fourth Proportional to 637,847.80, 956,426.10 and 263,908.60

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Solution

The fourth proportional to 637,847.80, 956,426.10 and 263,908.60 is: 395,719.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,847.80 : 956,426.10 = 263,908.60 : x
  2. Step 2: Convert to fraction form
    637,847.80/956,426.10 = 263,908.60/x
  3. Step 3: Cross multiply
    637,847.80x = 956,426.10 × 263,908.60
  4. Step 4: Simplify right side
    637,847.80x = 252,409,073,054.46
  5. Step 5: Solve for x
    x = 252,409,073,054.46/637,847.80
  6. Step 6: Final answer
    x = 395,719.91

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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.