Home / 511,206.30-705,448.98-320,324.94

Finding the Fourth Proportional to 511,206.30, 705,448.98 and 320,324.94

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Solution

The fourth proportional to 511,206.30, 705,448.98 and 320,324.94 is: 442,038.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,206.30 : 705,448.98 = 320,324.94 : x
  2. Step 2: Convert to fraction form
    511,206.30/705,448.98 = 320,324.94/x
  3. Step 3: Cross multiply
    511,206.30x = 705,448.98 × 320,324.94
  4. Step 4: Simplify right side
    511,206.30x = 225,972,902,191.56
  5. Step 5: Solve for x
    x = 225,972,902,191.56/511,206.30
  6. Step 6: Final answer
    x = 442,038.57

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1.5x scale

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.