Home / 1,140,975.69-1,712,324.36-780,284.71

Finding the Fourth Proportional to 1,140,975.69, 1,712,324.36 and 780,284.71

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Solution

The fourth proportional to 1,140,975.69, 1,712,324.36 and 780,284.71 is: 1,171,015.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,975.69 : 1,712,324.36 = 780,284.71 : x
  2. Step 2: Convert to fraction form
    1,140,975.69/1,712,324.36 = 780,284.71/x
  3. Step 3: Cross multiply
    1,140,975.69x = 1,712,324.36 × 780,284.71
  4. Step 4: Simplify right side
    1,140,975.69x = 1,336,100,516,668.54
  5. Step 5: Solve for x
    x = 1,336,100,516,668.54/1,140,975.69
  6. Step 6: Final answer
    x = 1,171,015.76

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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.