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Finding the Fourth Proportional to 626,125.36, 864,046.29 and 339,642.94

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Solution

The fourth proportional to 626,125.36, 864,046.29 and 339,642.94 is: 468,703.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,125.36 : 864,046.29 = 339,642.94 : x
  2. Step 2: Convert to fraction form
    626,125.36/864,046.29 = 339,642.94/x
  3. Step 3: Cross multiply
    626,125.36x = 864,046.29 × 339,642.94
  4. Step 4: Simplify right side
    626,125.36x = 293,467,222,231.69
  5. Step 5: Solve for x
    x = 293,467,222,231.69/626,125.36
  6. Step 6: Final answer
    x = 468,703.62

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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.