Home / 557,814.20-769,789.56-303,165.40

Finding the Fourth Proportional to 557,814.20, 769,789.56 and 303,165.40

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Solution

The fourth proportional to 557,814.20, 769,789.56 and 303,165.40 is: 418,371.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,814.20 : 769,789.56 = 303,165.40 : x
  2. Step 2: Convert to fraction form
    557,814.20/769,789.56 = 303,165.40/x
  3. Step 3: Cross multiply
    557,814.20x = 769,789.56 × 303,165.40
  4. Step 4: Simplify right side
    557,814.20x = 233,373,559,873.22
  5. Step 5: Solve for x
    x = 233,373,559,873.22/557,814.20
  6. Step 6: Final answer
    x = 418,371.49

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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.