Home / 759,375.45-1,138,499.42-459,784.80

Finding the Fourth Proportional to 759,375.45, 1,138,499.42 and 459,784.80

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Solution

The fourth proportional to 759,375.45, 1,138,499.42 and 459,784.80 is: 689,335.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,375.45 : 1,138,499.42 = 459,784.80 : x
  2. Step 2: Convert to fraction form
    759,375.45/1,138,499.42 = 459,784.80/x
  3. Step 3: Cross multiply
    759,375.45x = 1,138,499.42 × 459,784.80
  4. Step 4: Simplify right side
    759,375.45x = 523,464,725,825.89
  5. Step 5: Solve for x
    x = 523,464,725,825.89/759,375.45
  6. Step 6: Final answer
    x = 689,335.86

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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.