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Finding the Fourth Proportional to 529,771.36, 731,093.62 and 288,055.57

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Solution

The fourth proportional to 529,771.36, 731,093.62 and 288,055.57 is: 397,521.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,771.36 : 731,093.62 = 288,055.57 : x
  2. Step 2: Convert to fraction form
    529,771.36/731,093.62 = 288,055.57/x
  3. Step 3: Cross multiply
    529,771.36x = 731,093.62 × 288,055.57
  4. Step 4: Simplify right side
    529,771.36x = 210,595,584,336.72
  5. Step 5: Solve for x
    x = 210,595,584,336.72/529,771.36
  6. Step 6: Final answer
    x = 397,521.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.