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Finding the Fourth Proportional to 557,282.16, 769,284.81 and 376,239.32

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Solution

The fourth proportional to 557,282.16, 769,284.81 and 376,239.32 is: 519,369.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,282.16 : 769,284.81 = 376,239.32 : x
  2. Step 2: Convert to fraction form
    557,282.16/769,284.81 = 376,239.32/x
  3. Step 3: Cross multiply
    557,282.16x = 769,284.81 × 376,239.32
  4. Step 4: Simplify right side
    557,282.16x = 289,435,193,800.73
  5. Step 5: Solve for x
    x = 289,435,193,800.73/557,282.16
  6. Step 6: Final answer
    x = 519,369.21

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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.