Home / 1,185,384-1,778,232.24-386,385.60

Finding the Fourth Proportional to 1,185,384, 1,778,232.24 and 386,385.60

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Solution

The fourth proportional to 1,185,384, 1,778,232.24 and 386,385.60 is: 579,629.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,384 : 1,778,232.24 = 386,385.60 : x
  2. Step 2: Convert to fraction form
    1,185,384/1,778,232.24 = 386,385.60/x
  3. Step 3: Cross multiply
    1,185,384x = 1,778,232.24 × 386,385.60
  4. Step 4: Simplify right side
    1,185,384x = 687,083,330,991.74
  5. Step 5: Solve for x
    x = 687,083,330,991.74/1,185,384
  6. Step 6: Final answer
    x = 579,629.33

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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.