Home / 929,786.81-1,283,007.20-521,933.58

Finding the Fourth Proportional to 929,786.81, 1,283,007.20 and 521,933.58

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Solution

The fourth proportional to 929,786.81, 1,283,007.20 and 521,933.58 is: 720,212.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,786.81 : 1,283,007.20 = 521,933.58 : x
  2. Step 2: Convert to fraction form
    929,786.81/1,283,007.20 = 521,933.58/x
  3. Step 3: Cross multiply
    929,786.81x = 1,283,007.20 × 521,933.58
  4. Step 4: Simplify right side
    929,786.81x = 669,644,538,452.11
  5. Step 5: Solve for x
    x = 669,644,538,452.11/929,786.81
  6. Step 6: Final answer
    x = 720,212.99

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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.