Home / 628,513.11-867,367.77-356,592.48

Finding the Fourth Proportional to 628,513.11, 867,367.77 and 356,592.48

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Solution

The fourth proportional to 628,513.11, 867,367.77 and 356,592.48 is: 492,108.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,513.11 : 867,367.77 = 356,592.48 : x
  2. Step 2: Convert to fraction form
    628,513.11/867,367.77 = 356,592.48/x
  3. Step 3: Cross multiply
    628,513.11x = 867,367.77 × 356,592.48
  4. Step 4: Simplify right side
    628,513.11x = 309,296,824,176.37
  5. Step 5: Solve for x
    x = 309,296,824,176.37/628,513.11
  6. Step 6: Final answer
    x = 492,108.79

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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.