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Finding the Fourth Proportional to 324,830.40, 486,554.40 and 269,534.40

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Solution

The fourth proportional to 324,830.40, 486,554.40 and 269,534.40 is: 403,728.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,830.40 : 486,554.40 = 269,534.40 : x
  2. Step 2: Convert to fraction form
    324,830.40/486,554.40 = 269,534.40/x
  3. Step 3: Cross multiply
    324,830.40x = 486,554.40 × 269,534.40
  4. Step 4: Simplify right side
    324,830.40x = 131,143,148,271.36
  5. Step 5: Solve for x
    x = 131,143,148,271.36/324,830.40
  6. Step 6: Final answer
    x = 403,728.06

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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.