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Finding the Fourth Proportional to 626,809.86, 864,998.73 and 340,329.06

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Solution

The fourth proportional to 626,809.86, 864,998.73 and 340,329.06 is: 469,654.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,809.86 : 864,998.73 = 340,329.06 : x
  2. Step 2: Convert to fraction form
    626,809.86/864,998.73 = 340,329.06/x
  3. Step 3: Cross multiply
    626,809.86x = 864,998.73 × 340,329.06
  4. Step 4: Simplify right side
    626,809.86x = 294,384,204,682.09
  5. Step 5: Solve for x
    x = 294,384,204,682.09/626,809.86
  6. Step 6: Final answer
    x = 469,654.71

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1.5x scale

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.