Home / 1,288,178.37-1,932,593.58-909,837.90

Finding the Fourth Proportional to 1,288,178.37, 1,932,593.58 and 909,837.90

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Solution

The fourth proportional to 1,288,178.37, 1,932,593.58 and 909,837.90 is: 1,364,987.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,178.37 : 1,932,593.58 = 909,837.90 : x
  2. Step 2: Convert to fraction form
    1,288,178.37/1,932,593.58 = 909,837.90/x
  3. Step 3: Cross multiply
    1,288,178.37x = 1,932,593.58 × 909,837.90
  4. Step 4: Simplify right side
    1,288,178.37x = 1,758,346,884,380.68
  5. Step 5: Solve for x
    x = 1,758,346,884,380.68/1,288,178.37
  6. Step 6: Final answer
    x = 1,364,987.12

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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.