Home / 481,344.54-664,429.95-280,140.54

Finding the Fourth Proportional to 481,344.54, 664,429.95 and 280,140.54

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Solution

The fourth proportional to 481,344.54, 664,429.95 and 280,140.54 is: 386,695.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,344.54 : 664,429.95 = 280,140.54 : x
  2. Step 2: Convert to fraction form
    481,344.54/664,429.95 = 280,140.54/x
  3. Step 3: Cross multiply
    481,344.54x = 664,429.95 × 280,140.54
  4. Step 4: Simplify right side
    481,344.54x = 186,133,764,985.17
  5. Step 5: Solve for x
    x = 186,133,764,985.17/481,344.54
  6. Step 6: Final answer
    x = 386,695.49

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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.