Home / 628,530.91-867,392.21-356,610.26

Finding the Fourth Proportional to 628,530.91, 867,392.21 and 356,610.26

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Solution

The fourth proportional to 628,530.91, 867,392.21 and 356,610.26 is: 492,133.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,530.91 : 867,392.21 = 356,610.26 : x
  2. Step 2: Convert to fraction form
    628,530.91/867,392.21 = 356,610.26/x
  3. Step 3: Cross multiply
    628,530.91x = 867,392.21 × 356,610.26
  4. Step 4: Simplify right side
    628,530.91x = 309,320,964,590.08
  5. Step 5: Solve for x
    x = 309,320,964,590.08/628,530.91
  6. Step 6: Final answer
    x = 492,133.26

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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.