Home / 426,432.80-639,094.46-173,418.37

Finding the Fourth Proportional to 426,432.80, 639,094.46 and 173,418.37

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Solution

The fourth proportional to 426,432.80, 639,094.46 and 173,418.37 is: 259,901.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,432.80 : 639,094.46 = 173,418.37 : x
  2. Step 2: Convert to fraction form
    426,432.80/639,094.46 = 173,418.37/x
  3. Step 3: Cross multiply
    426,432.80x = 639,094.46 × 173,418.37
  4. Step 4: Simplify right side
    426,432.80x = 110,830,717,064.40
  5. Step 5: Solve for x
    x = 110,830,717,064.40/426,432.80
  6. Step 6: Final answer
    x = 259,901.95

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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.