Home / 813,529.34-1,122,290.78-511,889.66

Finding the Fourth Proportional to 813,529.34, 1,122,290.78 and 511,889.66

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Solution

The fourth proportional to 813,529.34, 1,122,290.78 and 511,889.66 is: 706,168.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,529.34 : 1,122,290.78 = 511,889.66 : x
  2. Step 2: Convert to fraction form
    813,529.34/1,122,290.78 = 511,889.66/x
  3. Step 3: Cross multiply
    813,529.34x = 1,122,290.78 × 511,889.66
  4. Step 4: Simplify right side
    813,529.34x = 574,489,045,795.34
  5. Step 5: Solve for x
    x = 574,489,045,795.34/813,529.34
  6. Step 6: Final answer
    x = 706,168.81

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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.