Home / 1,259,959.86-1,738,752.48-687,009.60

Finding the Fourth Proportional to 1,259,959.86, 1,738,752.48 and 687,009.60

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Solution

The fourth proportional to 1,259,959.86, 1,738,752.48 and 687,009.60 is: 948,077.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,959.86 : 1,738,752.48 = 687,009.60 : x
  2. Step 2: Convert to fraction form
    1,259,959.86/1,738,752.48 = 687,009.60/x
  3. Step 3: Cross multiply
    1,259,959.86x = 1,738,752.48 × 687,009.60
  4. Step 4: Simplify right side
    1,259,959.86x = 1,194,539,645,783.81
  5. Step 5: Solve for x
    x = 1,194,539,645,783.81/1,259,959.86
  6. Step 6: Final answer
    x = 948,077.54

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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.