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Finding the Fourth Proportional to 608,127.84, 839,240.09 and 403,826.49

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Solution

The fourth proportional to 608,127.84, 839,240.09 and 403,826.49 is: 557,296.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,127.84 : 839,240.09 = 403,826.49 : x
  2. Step 2: Convert to fraction form
    608,127.84/839,240.09 = 403,826.49/x
  3. Step 3: Cross multiply
    608,127.84x = 839,240.09 × 403,826.49
  4. Step 4: Simplify right side
    608,127.84x = 338,907,377,792.85
  5. Step 5: Solve for x
    x = 338,907,377,792.85/608,127.84
  6. Step 6: Final answer
    x = 557,296.27

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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.