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Finding the Fourth Proportional to 626,206.64, 864,166.83 and 339,726.73

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Solution

The fourth proportional to 626,206.64, 864,166.83 and 339,726.73 is: 468,823.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,206.64 : 864,166.83 = 339,726.73 : x
  2. Step 2: Convert to fraction form
    626,206.64/864,166.83 = 339,726.73/x
  3. Step 3: Cross multiply
    626,206.64x = 864,166.83 × 339,726.73
  4. Step 4: Simplify right side
    626,206.64x = 293,580,569,952.26
  5. Step 5: Solve for x
    x = 293,580,569,952.26/626,206.64
  6. Step 6: Final answer
    x = 468,823.79

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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.