Home / 777,664.76-1,073,177.38-419,968.76

Finding the Fourth Proportional to 777,664.76, 1,073,177.38 and 419,968.76

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Solution

The fourth proportional to 777,664.76, 1,073,177.38 and 419,968.76 is: 579,556.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,664.76 : 1,073,177.38 = 419,968.76 : x
  2. Step 2: Convert to fraction form
    777,664.76/1,073,177.38 = 419,968.76/x
  3. Step 3: Cross multiply
    777,664.76x = 1,073,177.38 × 419,968.76
  4. Step 4: Simplify right side
    777,664.76x = 450,700,973,538.65
  5. Step 5: Solve for x
    x = 450,700,973,538.65/777,664.76
  6. Step 6: Final answer
    x = 579,556.89

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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.