Home / 635,623.20-953,431.92-215,189.28

Finding the Fourth Proportional to 635,623.20, 953,431.92 and 215,189.28

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Solution

The fourth proportional to 635,623.20, 953,431.92 and 215,189.28 is: 322,782.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,623.20 : 953,431.92 = 215,189.28 : x
  2. Step 2: Convert to fraction form
    635,623.20/953,431.92 = 215,189.28/x
  3. Step 3: Cross multiply
    635,623.20x = 953,431.92 × 215,189.28
  4. Step 4: Simplify right side
    635,623.20x = 205,168,328,393.82
  5. Step 5: Solve for x
    x = 205,168,328,393.82/635,623.20
  6. Step 6: Final answer
    x = 322,782.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.