Home / 2,128,962.85-3,193,489.65-762,825.79

Finding the Fourth Proportional to 2,128,962.85, 3,193,489.65 and 762,825.79

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Solution

The fourth proportional to 2,128,962.85, 3,193,489.65 and 762,825.79 is: 1,144,254.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,962.85 : 3,193,489.65 = 762,825.79 : x
  2. Step 2: Convert to fraction form
    2,128,962.85/3,193,489.65 = 762,825.79/x
  3. Step 3: Cross multiply
    2,128,962.85x = 3,193,489.65 × 762,825.79
  4. Step 4: Simplify right side
    2,128,962.85x = 2,436,076,265,118.07
  5. Step 5: Solve for x
    x = 2,436,076,265,118.07/2,128,962.85
  6. Step 6: Final answer
    x = 1,144,254.94

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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.