Home / 427,584.84-641,563.28-268,026.44

Finding the Fourth Proportional to 427,584.84, 641,563.28 and 268,026.44

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Solution

The fourth proportional to 427,584.84, 641,563.28 and 268,026.44 is: 402,156.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,584.84 : 641,563.28 = 268,026.44 : x
  2. Step 2: Convert to fraction form
    427,584.84/641,563.28 = 268,026.44/x
  3. Step 3: Cross multiply
    427,584.84x = 641,563.28 × 268,026.44
  4. Step 4: Simplify right side
    427,584.84x = 171,955,921,973.12
  5. Step 5: Solve for x
    x = 171,955,921,973.12/427,584.84
  6. Step 6: Final answer
    x = 402,156.26

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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.