Home / 1,155,959.30-1,595,221.53-646,661.68

Finding the Fourth Proportional to 1,155,959.30, 1,595,221.53 and 646,661.68

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Solution

The fourth proportional to 1,155,959.30, 1,595,221.53 and 646,661.68 is: 892,391.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,959.30 : 1,595,221.53 = 646,661.68 : x
  2. Step 2: Convert to fraction form
    1,155,959.30/1,595,221.53 = 646,661.68/x
  3. Step 3: Cross multiply
    1,155,959.30x = 1,595,221.53 × 646,661.68
  4. Step 4: Simplify right side
    1,155,959.30x = 1,031,568,628,148.94
  5. Step 5: Solve for x
    x = 1,031,568,628,148.94/1,155,959.30
  6. Step 6: Final answer
    x = 892,391.82

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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.