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Finding the Fourth Proportional to 554,361.99, 765,019.61 and 299,713.11

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Solution

The fourth proportional to 554,361.99, 765,019.61 and 299,713.11 is: 413,604.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,361.99 : 765,019.61 = 299,713.11 : x
  2. Step 2: Convert to fraction form
    554,361.99/765,019.61 = 299,713.11/x
  3. Step 3: Cross multiply
    554,361.99x = 765,019.61 × 299,713.11
  4. Step 4: Simplify right side
    554,361.99x = 229,286,406,524.09
  5. Step 5: Solve for x
    x = 229,286,406,524.09/554,361.99
  6. Step 6: Final answer
    x = 413,604.13

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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.