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Finding the Fourth Proportional to 626,404.25, 864,437.87 and 339,924.33

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Solution

The fourth proportional to 626,404.25, 864,437.87 and 339,924.33 is: 469,095.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,404.25 : 864,437.87 = 339,924.33 : x
  2. Step 2: Convert to fraction form
    626,404.25/864,437.87 = 339,924.33/x
  3. Step 3: Cross multiply
    626,404.25x = 864,437.87 × 339,924.33
  4. Step 4: Simplify right side
    626,404.25x = 293,843,462,086.76
  5. Step 5: Solve for x
    x = 293,843,462,086.76/626,404.25
  6. Step 6: Final answer
    x = 469,095.58

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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.