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Finding the Fourth Proportional to 389,234.96, 582,714.48 and 351,880.64

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Solution

The fourth proportional to 389,234.96, 582,714.48 and 351,880.64 is: 526,792.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,234.96 : 582,714.48 = 351,880.64 : x
  2. Step 2: Convert to fraction form
    389,234.96/582,714.48 = 351,880.64/x
  3. Step 3: Cross multiply
    389,234.96x = 582,714.48 × 351,880.64
  4. Step 4: Simplify right side
    389,234.96x = 205,045,944,159.67
  5. Step 5: Solve for x
    x = 205,045,944,159.67/389,234.96
  6. Step 6: Final answer
    x = 526,792.21

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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.