Home / 628,465.45-867,301.92-356,544.80

Finding the Fourth Proportional to 628,465.45, 867,301.92 and 356,544.80

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Solution

The fourth proportional to 628,465.45, 867,301.92 and 356,544.80 is: 492,042.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,465.45 : 867,301.92 = 356,544.80 : x
  2. Step 2: Convert to fraction form
    628,465.45/867,301.92 = 356,544.80/x
  3. Step 3: Cross multiply
    628,465.45x = 867,301.92 × 356,544.80
  4. Step 4: Simplify right side
    628,465.45x = 309,231,987,823.29
  5. Step 5: Solve for x
    x = 309,231,987,823.29/628,465.45
  6. Step 6: Final answer
    x = 492,042.94

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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.