Home / 1,289,495.40-1,930,556.70-791,831.40

Finding the Fourth Proportional to 1,289,495.40, 1,930,556.70 and 791,831.40

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Solution

The fourth proportional to 1,289,495.40, 1,930,556.70 and 791,831.40 is: 1,185,483.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,495.40 : 1,930,556.70 = 791,831.40 : x
  2. Step 2: Convert to fraction form
    1,289,495.40/1,930,556.70 = 791,831.40/x
  3. Step 3: Cross multiply
    1,289,495.40x = 1,930,556.70 × 791,831.40
  4. Step 4: Simplify right side
    1,289,495.40x = 1,528,675,414,540.38
  5. Step 5: Solve for x
    x = 1,528,675,414,540.38/1,289,495.40
  6. Step 6: Final answer
    x = 1,185,483.42

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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.