Home / 639,830.54-959,007.61-240,216.43

Finding the Fourth Proportional to 639,830.54, 959,007.61 and 240,216.43

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Solution

The fourth proportional to 639,830.54, 959,007.61 and 240,216.43 is: 360,047.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,830.54 : 959,007.61 = 240,216.43 : x
  2. Step 2: Convert to fraction form
    639,830.54/959,007.61 = 240,216.43/x
  3. Step 3: Cross multiply
    639,830.54x = 959,007.61 × 240,216.43
  4. Step 4: Simplify right side
    639,830.54x = 230,369,379,621.99
  5. Step 5: Solve for x
    x = 230,369,379,621.99/639,830.54
  6. Step 6: Final answer
    x = 360,047.49

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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.