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Finding the Fourth Proportional to 435,968.63, 653,990.91 and 120,425.84

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Solution

The fourth proportional to 435,968.63, 653,990.91 and 120,425.84 is: 180,649.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,968.63 : 653,990.91 = 120,425.84 : x
  2. Step 2: Convert to fraction form
    435,968.63/653,990.91 = 120,425.84/x
  3. Step 3: Cross multiply
    435,968.63x = 653,990.91 × 120,425.84
  4. Step 4: Simplify right side
    435,968.63x = 78,757,400,817.03
  5. Step 5: Solve for x
    x = 78,757,400,817.03/435,968.63
  6. Step 6: Final answer
    x = 180,649.24

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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.