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Finding the Fourth Proportional to 508,041, 701,120.88 and 281,686.50

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Solution

The fourth proportional to 508,041, 701,120.88 and 281,686.50 is: 388,740.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,041 : 701,120.88 = 281,686.50 : x
  2. Step 2: Convert to fraction form
    508,041/701,120.88 = 281,686.50/x
  3. Step 3: Cross multiply
    508,041x = 701,120.88 × 281,686.50
  4. Step 4: Simplify right side
    508,041x = 197,496,286,764.12
  5. Step 5: Solve for x
    x = 197,496,286,764.12/508,041
  6. Step 6: Final answer
    x = 388,740.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.