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Finding the Fourth Proportional to 555,085.06, 766,035.93 and 340,183.60

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Solution

The fourth proportional to 555,085.06, 766,035.93 and 340,183.60 is: 469,464.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,085.06 : 766,035.93 = 340,183.60 : x
  2. Step 2: Convert to fraction form
    555,085.06/766,035.93 = 340,183.60/x
  3. Step 3: Cross multiply
    555,085.06x = 766,035.93 × 340,183.60
  4. Step 4: Simplify right side
    555,085.06x = 260,592,860,396.75
  5. Step 5: Solve for x
    x = 260,592,860,396.75/555,085.06
  6. Step 6: Final answer
    x = 469,464.73

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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.