Home / 764,123.68-1,054,514.38-419,953.33

Finding the Fourth Proportional to 764,123.68, 1,054,514.38 and 419,953.33

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Solution

The fourth proportional to 764,123.68, 1,054,514.38 and 419,953.33 is: 579,548.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,123.68 : 1,054,514.38 = 419,953.33 : x
  2. Step 2: Convert to fraction form
    764,123.68/1,054,514.38 = 419,953.33/x
  3. Step 3: Cross multiply
    764,123.68x = 1,054,514.38 × 419,953.33
  4. Step 4: Simplify right side
    764,123.68x = 442,846,818,041.55
  5. Step 5: Solve for x
    x = 442,846,818,041.55/764,123.68
  6. Step 6: Final answer
    x = 579,548.62

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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.