Home / 628,270.98-867,315.06-386,760.57

Finding the Fourth Proportional to 628,270.98, 867,315.06 and 386,760.57

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Solution

The fourth proportional to 628,270.98, 867,315.06 and 386,760.57 is: 533,914.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,270.98 : 867,315.06 = 386,760.57 : x
  2. Step 2: Convert to fraction form
    628,270.98/867,315.06 = 386,760.57/x
  3. Step 3: Cross multiply
    628,270.98x = 867,315.06 × 386,760.57
  4. Step 4: Simplify right side
    628,270.98x = 335,443,266,975.18
  5. Step 5: Solve for x
    x = 335,443,266,975.18/628,270.98
  6. Step 6: Final answer
    x = 533,914.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.