Home / 628,476.91-867,317.69-356,556.26

Finding the Fourth Proportional to 628,476.91, 867,317.69 and 356,556.26

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Solution

The fourth proportional to 628,476.91, 867,317.69 and 356,556.26 is: 492,058.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,476.91 : 867,317.69 = 356,556.26 : x
  2. Step 2: Convert to fraction form
    628,476.91/867,317.69 = 356,556.26/x
  3. Step 3: Cross multiply
    628,476.91x = 867,317.69 × 356,556.26
  4. Step 4: Simplify right side
    628,476.91x = 309,247,554,837.92
  5. Step 5: Solve for x
    x = 309,247,554,837.92/628,476.91
  6. Step 6: Final answer
    x = 492,058.74

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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.