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Finding the Fourth Proportional to 505,912.80, 758,350.80 and 295,442.40

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Solution

The fourth proportional to 505,912.80, 758,350.80 and 295,442.40 is: 442,860.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,912.80 : 758,350.80 = 295,442.40 : x
  2. Step 2: Convert to fraction form
    505,912.80/758,350.80 = 295,442.40/x
  3. Step 3: Cross multiply
    505,912.80x = 758,350.80 × 295,442.40
  4. Step 4: Simplify right side
    505,912.80x = 224,048,980,393.92
  5. Step 5: Solve for x
    x = 224,048,980,393.92/505,912.80
  6. Step 6: Final answer
    x = 442,860.87

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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.