Home / 1,110,405.12-1,665,607.47-605,390.78

Finding the Fourth Proportional to 1,110,405.12, 1,665,607.47 and 605,390.78

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Solution

The fourth proportional to 1,110,405.12, 1,665,607.47 and 605,390.78 is: 908,086.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110,405.12 : 1,665,607.47 = 605,390.78 : x
  2. Step 2: Convert to fraction form
    1,110,405.12/1,665,607.47 = 605,390.78/x
  3. Step 3: Cross multiply
    1,110,405.12x = 1,665,607.47 × 605,390.78
  4. Step 4: Simplify right side
    1,110,405.12x = 1,008,343,397,109.09
  5. Step 5: Solve for x
    x = 1,008,343,397,109.09/1,110,405.12
  6. Step 6: Final answer
    x = 908,086.05

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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.