Home / 1,116,078.81-1,540,516.54-728,953.41

Finding the Fourth Proportional to 1,116,078.81, 1,540,516.54 and 728,953.41

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Solution

The fourth proportional to 1,116,078.81, 1,540,516.54 and 728,953.41 is: 1,006,169.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116,078.81 : 1,540,516.54 = 728,953.41 : x
  2. Step 2: Convert to fraction form
    1,116,078.81/1,540,516.54 = 728,953.41/x
  3. Step 3: Cross multiply
    1,116,078.81x = 1,540,516.54 × 728,953.41
  4. Step 4: Simplify right side
    1,116,078.81x = 1,122,964,784,538.81
  5. Step 5: Solve for x
    x = 1,122,964,784,538.81/1,116,078.81
  6. Step 6: Final answer
    x = 1,006,169.79

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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.