Home / 626,418.95-864,458.71-339,939.04

Finding the Fourth Proportional to 626,418.95, 864,458.71 and 339,939.04

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Solution

The fourth proportional to 626,418.95, 864,458.71 and 339,939.04 is: 469,116.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,418.95 : 864,458.71 = 339,939.04 : x
  2. Step 2: Convert to fraction form
    626,418.95/864,458.71 = 339,939.04/x
  3. Step 3: Cross multiply
    626,418.95x = 864,458.71 × 339,939.04
  4. Step 4: Simplify right side
    626,418.95x = 293,863,257,975.05
  5. Step 5: Solve for x
    x = 293,863,257,975.05/626,418.95
  6. Step 6: Final answer
    x = 469,116.17

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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.