Home / 426,029.63-639,049.30-110,467.40

Finding the Fourth Proportional to 426,029.63, 639,049.30 and 110,467.40

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Solution

The fourth proportional to 426,029.63, 639,049.30 and 110,467.40 is: 165,702.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,029.63 : 639,049.30 = 110,467.40 : x
  2. Step 2: Convert to fraction form
    426,029.63/639,049.30 = 110,467.40/x
  3. Step 3: Cross multiply
    426,029.63x = 639,049.30 × 110,467.40
  4. Step 4: Simplify right side
    426,029.63x = 70,594,111,171.41
  5. Step 5: Solve for x
    x = 70,594,111,171.41/426,029.63
  6. Step 6: Final answer
    x = 165,702.35

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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.