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Finding the Fourth Proportional to 574,018.66, 860,992.98 and 214,120

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Solution

The fourth proportional to 574,018.66, 860,992.98 and 214,120 is: 321,166.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,018.66 : 860,992.98 = 214,120 : x
  2. Step 2: Convert to fraction form
    574,018.66/860,992.98 = 214,120/x
  3. Step 3: Cross multiply
    574,018.66x = 860,992.98 × 214,120
  4. Step 4: Simplify right side
    574,018.66x = 184,355,816,877.60
  5. Step 5: Solve for x
    x = 184,355,816,877.60/574,018.66
  6. Step 6: Final answer
    x = 321,166.94

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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.