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Finding the Fourth Proportional to 850,813.84, 1,275,903 and 282,090.64

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Solution

The fourth proportional to 850,813.84, 1,275,903 and 282,090.64 is: 423,030.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    850,813.84 : 1,275,903 = 282,090.64 : x
  2. Step 2: Convert to fraction form
    850,813.84/1,275,903 = 282,090.64/x
  3. Step 3: Cross multiply
    850,813.84x = 1,275,903 × 282,090.64
  4. Step 4: Simplify right side
    850,813.84x = 359,920,293,847.92
  5. Step 5: Solve for x
    x = 359,920,293,847.92/850,813.84
  6. Step 6: Final answer
    x = 423,030.61

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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.