Home / 856,172.84-1,284,157.13-225,135.86

Finding the Fourth Proportional to 856,172.84, 1,284,157.13 and 225,135.86

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Solution

The fourth proportional to 856,172.84, 1,284,157.13 and 225,135.86 is: 337,676.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,172.84 : 1,284,157.13 = 225,135.86 : x
  2. Step 2: Convert to fraction form
    856,172.84/1,284,157.13 = 225,135.86/x
  3. Step 3: Cross multiply
    856,172.84x = 1,284,157.13 × 225,135.86
  4. Step 4: Simplify right side
    856,172.84x = 289,109,812,291.22
  5. Step 5: Solve for x
    x = 289,109,812,291.22/856,172.84
  6. Step 6: Final answer
    x = 337,676.93

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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.