Home / 511,075.07-705,274.09-281,653.61

Finding the Fourth Proportional to 511,075.07, 705,274.09 and 281,653.61

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Solution

The fourth proportional to 511,075.07, 705,274.09 and 281,653.61 is: 388,676.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,075.07 : 705,274.09 = 281,653.61 : x
  2. Step 2: Convert to fraction form
    511,075.07/705,274.09 = 281,653.61/x
  3. Step 3: Cross multiply
    511,075.07x = 705,274.09 × 281,653.61
  4. Step 4: Simplify right side
    511,075.07x = 198,642,989,257.46
  5. Step 5: Solve for x
    x = 198,642,989,257.46/511,075.07
  6. Step 6: Final answer
    x = 388,676.74

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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.