Home / 511,271.12-705,093.72-320,301.20

Finding the Fourth Proportional to 511,271.12, 705,093.72 and 320,301.20

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Solution

The fourth proportional to 511,271.12, 705,093.72 and 320,301.20 is: 441,727.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,271.12 : 705,093.72 = 320,301.20 : x
  2. Step 2: Convert to fraction form
    511,271.12/705,093.72 = 320,301.20/x
  3. Step 3: Cross multiply
    511,271.12x = 705,093.72 × 320,301.20
  4. Step 4: Simplify right side
    511,271.12x = 225,842,364,628.46
  5. Step 5: Solve for x
    x = 225,842,364,628.46/511,271.12
  6. Step 6: Final answer
    x = 441,727.21

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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.