Home / 426,119.58-639,423.59-173,353.41

Finding the Fourth Proportional to 426,119.58, 639,423.59 and 173,353.41

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Solution

The fourth proportional to 426,119.58, 639,423.59 and 173,353.41 is: 260,129.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,119.58 : 639,423.59 = 173,353.41 : x
  2. Step 2: Convert to fraction form
    426,119.58/639,423.59 = 173,353.41/x
  3. Step 3: Cross multiply
    426,119.58x = 639,423.59 × 173,353.41
  4. Step 4: Simplify right side
    426,119.58x = 110,846,258,894.18
  5. Step 5: Solve for x
    x = 110,846,258,894.18/426,119.58
  6. Step 6: Final answer
    x = 260,129.47

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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.