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Finding the Fourth Proportional to 505,798.24, 758,043.32 and 378,439.24

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Solution

The fourth proportional to 505,798.24, 758,043.32 and 378,439.24 is: 567,169.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,798.24 : 758,043.32 = 378,439.24 : x
  2. Step 2: Convert to fraction form
    505,798.24/758,043.32 = 378,439.24/x
  3. Step 3: Cross multiply
    505,798.24x = 758,043.32 × 378,439.24
  4. Step 4: Simplify right side
    505,798.24x = 286,873,337,907.88
  5. Step 5: Solve for x
    x = 286,873,337,907.88/505,798.24
  6. Step 6: Final answer
    x = 567,169.51

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1.5x scale

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.