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Finding the Fourth Proportional to 557,880.66, 769,876.38 and 303,231.24

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Solution

The fourth proportional to 557,880.66, 769,876.38 and 303,231.24 is: 418,459.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,880.66 : 769,876.38 = 303,231.24 : x
  2. Step 2: Convert to fraction form
    557,880.66/769,876.38 = 303,231.24/x
  3. Step 3: Cross multiply
    557,880.66x = 769,876.38 × 303,231.24
  4. Step 4: Simplify right side
    557,880.66x = 233,450,569,354.11
  5. Step 5: Solve for x
    x = 233,450,569,354.11/557,880.66
  6. Step 6: Final answer
    x = 418,459.69

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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.