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Finding the Fourth Proportional to 626,404.73, 864,438.52 and 339,924.82

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Solution

The fourth proportional to 626,404.73, 864,438.52 and 339,924.82 is: 469,096.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,404.73 : 864,438.52 = 339,924.82 : x
  2. Step 2: Convert to fraction form
    626,404.73/864,438.52 = 339,924.82/x
  3. Step 3: Cross multiply
    626,404.73x = 864,438.52 × 339,924.82
  4. Step 4: Simplify right side
    626,404.73x = 293,844,108,312.07
  5. Step 5: Solve for x
    x = 293,844,108,312.07/626,404.73
  6. Step 6: Final answer
    x = 469,096.25

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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.