Home / 511,513.37-705,872.26-282,080.33

Finding the Fourth Proportional to 511,513.37, 705,872.26 and 282,080.33

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Solution

The fourth proportional to 511,513.37, 705,872.26 and 282,080.33 is: 389,261.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,513.37 : 705,872.26 = 282,080.33 : x
  2. Step 2: Convert to fraction form
    511,513.37/705,872.26 = 282,080.33/x
  3. Step 3: Cross multiply
    511,513.37x = 705,872.26 × 282,080.33
  4. Step 4: Simplify right side
    511,513.37x = 199,112,680,038.65
  5. Step 5: Solve for x
    x = 199,112,680,038.65/511,513.37
  6. Step 6: Final answer
    x = 389,261.93

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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.