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Finding the Fourth Proportional to 655,757, 982,978.86 and 255,847.58

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Solution

The fourth proportional to 655,757, 982,978.86 and 255,847.58 is: 383,515.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,757 : 982,978.86 = 255,847.58 : x
  2. Step 2: Convert to fraction form
    655,757/982,978.86 = 255,847.58/x
  3. Step 3: Cross multiply
    655,757x = 982,978.86 × 255,847.58
  4. Step 4: Simplify right side
    655,757x = 251,492,762,522.16
  5. Step 5: Solve for x
    x = 251,492,762,522.16/655,757
  6. Step 6: Final answer
    x = 383,515.18

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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.