Home / 481,421.58-664,372.20-263,639.50

Finding the Fourth Proportional to 481,421.58, 664,372.20 and 263,639.50

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Solution

The fourth proportional to 481,421.58, 664,372.20 and 263,639.50 is: 363,828.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,421.58 : 664,372.20 = 263,639.50 : x
  2. Step 2: Convert to fraction form
    481,421.58/664,372.20 = 263,639.50/x
  3. Step 3: Cross multiply
    481,421.58x = 664,372.20 × 263,639.50
  4. Step 4: Simplify right side
    481,421.58x = 175,154,754,621.90
  5. Step 5: Solve for x
    x = 175,154,754,621.90/481,421.58
  6. Step 6: Final answer
    x = 363,828.22

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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.