Home / 1,138,301.42-1,570,834.23-628,992.86

Finding the Fourth Proportional to 1,138,301.42, 1,570,834.23 and 628,992.86

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Solution

The fourth proportional to 1,138,301.42, 1,570,834.23 and 628,992.86 is: 867,998.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,301.42 : 1,570,834.23 = 628,992.86 : x
  2. Step 2: Convert to fraction form
    1,138,301.42/1,570,834.23 = 628,992.86/x
  3. Step 3: Cross multiply
    1,138,301.42x = 1,570,834.23 × 628,992.86
  4. Step 4: Simplify right side
    1,138,301.42x = 988,043,514,913.60
  5. Step 5: Solve for x
    x = 988,043,514,913.60/1,138,301.42
  6. Step 6: Final answer
    x = 867,998.14

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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.