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Finding the Fourth Proportional to 557,670.48, 769,589.96 and 303,021.69

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Solution

The fourth proportional to 557,670.48, 769,589.96 and 303,021.69 is: 418,172.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,670.48 : 769,589.96 = 303,021.69 : x
  2. Step 2: Convert to fraction form
    557,670.48/769,589.96 = 303,021.69/x
  3. Step 3: Cross multiply
    557,670.48x = 769,589.96 × 303,021.69
  4. Step 4: Simplify right side
    557,670.48x = 233,202,448,771.12
  5. Step 5: Solve for x
    x = 233,202,448,771.12/557,670.48
  6. Step 6: Final answer
    x = 418,172.48

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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.