Home / 483,021.12-666,556.18-289,538.13

Finding the Fourth Proportional to 483,021.12, 666,556.18 and 289,538.13

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Solution

The fourth proportional to 483,021.12, 666,556.18 and 289,538.13 is: 399,554.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,021.12 : 666,556.18 = 289,538.13 : x
  2. Step 2: Convert to fraction form
    483,021.12/666,556.18 = 289,538.13/x
  3. Step 3: Cross multiply
    483,021.12x = 666,556.18 × 289,538.13
  4. Step 4: Simplify right side
    483,021.12x = 192,993,429,897.14
  5. Step 5: Solve for x
    x = 192,993,429,897.14/483,021.12
  6. Step 6: Final answer
    x = 399,554.85

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1.5x scale

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.