Home / 426,466.92-639,921.78-173,932.68

Finding the Fourth Proportional to 426,466.92, 639,921.78 and 173,932.68

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Solution

The fourth proportional to 426,466.92, 639,921.78 and 173,932.68 is: 260,989.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,466.92 : 639,921.78 = 173,932.68 : x
  2. Step 2: Convert to fraction form
    426,466.92/639,921.78 = 173,932.68/x
  3. Step 3: Cross multiply
    426,466.92x = 639,921.78 × 173,932.68
  4. Step 4: Simplify right side
    426,466.92x = 111,303,310,185.77
  5. Step 5: Solve for x
    x = 111,303,310,185.77/426,466.92
  6. Step 6: Final answer
    x = 260,989.32

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1.5x scale

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.