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Finding the Fourth Proportional to 505,149.88, 757,322.44 and 291,675.72

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Solution

The fourth proportional to 505,149.88, 757,322.44 and 291,675.72 is: 437,281.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,149.88 : 757,322.44 = 291,675.72 : x
  2. Step 2: Convert to fraction form
    505,149.88/757,322.44 = 291,675.72/x
  3. Step 3: Cross multiply
    505,149.88x = 757,322.44 × 291,675.72
  4. Step 4: Simplify right side
    505,149.88x = 220,892,567,959.16
  5. Step 5: Solve for x
    x = 220,892,567,959.16/505,149.88
  6. Step 6: Final answer
    x = 437,281.24

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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.