Home / 427,586.84-641,566.28-268,028.44

Finding the Fourth Proportional to 427,586.84, 641,566.28 and 268,028.44

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Solution

The fourth proportional to 427,586.84, 641,566.28 and 268,028.44 is: 402,159.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,586.84 : 641,566.28 = 268,028.44 : x
  2. Step 2: Convert to fraction form
    427,586.84/641,566.28 = 268,028.44/x
  3. Step 3: Cross multiply
    427,586.84x = 641,566.28 × 268,028.44
  4. Step 4: Simplify right side
    427,586.84x = 171,958,009,185.00
  5. Step 5: Solve for x
    x = 171,958,009,185.00/427,586.84
  6. Step 6: Final answer
    x = 402,159.26

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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.