Home / 818,536.32-1,227,795.84-319,896

Finding the Fourth Proportional to 818,536.32, 1,227,795.84 and 319,896

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Solution

The fourth proportional to 818,536.32, 1,227,795.84 and 319,896 is: 479,840.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,536.32 : 1,227,795.84 = 319,896 : x
  2. Step 2: Convert to fraction form
    818,536.32/1,227,795.84 = 319,896/x
  3. Step 3: Cross multiply
    818,536.32x = 1,227,795.84 × 319,896
  4. Step 4: Simplify right side
    818,536.32x = 392,766,978,032.64
  5. Step 5: Solve for x
    x = 392,766,978,032.64/818,536.32
  6. Step 6: Final answer
    x = 479,840.62

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.