Home / 1,109,406.78-1,531,074.96-625,992.30

Finding the Fourth Proportional to 1,109,406.78, 1,531,074.96 and 625,992.30

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Solution

The fourth proportional to 1,109,406.78, 1,531,074.96 and 625,992.30 is: 863,922.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,406.78 : 1,531,074.96 = 625,992.30 : x
  2. Step 2: Convert to fraction form
    1,109,406.78/1,531,074.96 = 625,992.30/x
  3. Step 3: Cross multiply
    1,109,406.78x = 1,531,074.96 × 625,992.30
  4. Step 4: Simplify right side
    1,109,406.78x = 958,441,135,682.81
  5. Step 5: Solve for x
    x = 958,441,135,682.81/1,109,406.78
  6. Step 6: Final answer
    x = 863,922.19

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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.