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Finding the Fourth Proportional to 618,294, 853,245.72 and 350,022

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Solution

The fourth proportional to 618,294, 853,245.72 and 350,022 is: 483,030.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,294 : 853,245.72 = 350,022 : x
  2. Step 2: Convert to fraction form
    618,294/853,245.72 = 350,022/x
  3. Step 3: Cross multiply
    618,294x = 853,245.72 × 350,022
  4. Step 4: Simplify right side
    618,294x = 298,654,773,405.84
  5. Step 5: Solve for x
    x = 298,654,773,405.84/618,294
  6. Step 6: Final answer
    x = 483,030.36

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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.