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Finding the Fourth Proportional to 456,590.09, 629,951.51 and 275,357.45

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Solution

The fourth proportional to 456,590.09, 629,951.51 and 275,357.45 is: 379,907.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,590.09 : 629,951.51 = 275,357.45 : x
  2. Step 2: Convert to fraction form
    456,590.09/629,951.51 = 275,357.45/x
  3. Step 3: Cross multiply
    456,590.09x = 629,951.51 × 275,357.45
  4. Step 4: Simplify right side
    456,590.09x = 173,461,840,040.46
  5. Step 5: Solve for x
    x = 173,461,840,040.46/456,590.09
  6. Step 6: Final answer
    x = 379,907.15

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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.