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Finding the Fourth Proportional to 626,238.96, 864,211.32 and 339,758.97

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Solution

The fourth proportional to 626,238.96, 864,211.32 and 339,758.97 is: 468,868.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,238.96 : 864,211.32 = 339,758.97 : x
  2. Step 2: Convert to fraction form
    626,238.96/864,211.32 = 339,758.97/x
  3. Step 3: Cross multiply
    626,238.96x = 864,211.32 × 339,758.97
  4. Step 4: Simplify right side
    626,238.96x = 293,623,547,945.54
  5. Step 5: Solve for x
    x = 293,623,547,945.54/626,238.96
  6. Step 6: Final answer
    x = 468,868.22

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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.