Home / 1,155,936.64-1,595,128.40-646,540.60

Finding the Fourth Proportional to 1,155,936.64, 1,595,128.40 and 646,540.60

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Solution

The fourth proportional to 1,155,936.64, 1,595,128.40 and 646,540.60 is: 892,190.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,936.64 : 1,595,128.40 = 646,540.60 : x
  2. Step 2: Convert to fraction form
    1,155,936.64/1,595,128.40 = 646,540.60/x
  3. Step 3: Cross multiply
    1,155,936.64x = 1,595,128.40 × 646,540.60
  4. Step 4: Simplify right side
    1,155,936.64x = 1,031,315,272,813.04
  5. Step 5: Solve for x
    x = 1,031,315,272,813.04/1,155,936.64
  6. Step 6: Final answer
    x = 892,190.14

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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.