Home / 557,861.22-769,844.64-303,212.40

Finding the Fourth Proportional to 557,861.22, 769,844.64 and 303,212.40

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Solution

The fourth proportional to 557,861.22, 769,844.64 and 303,212.40 is: 418,431.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,861.22 : 769,844.64 = 303,212.40 : x
  2. Step 2: Convert to fraction form
    557,861.22/769,844.64 = 303,212.40/x
  3. Step 3: Cross multiply
    557,861.22x = 769,844.64 × 303,212.40
  4. Step 4: Simplify right side
    557,861.22x = 233,426,440,921.54
  5. Step 5: Solve for x
    x = 233,426,440,921.54/557,861.22
  6. Step 6: Final answer
    x = 418,431.02

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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.