Home / 1,008,010.40-1,512,015.60-672,087.20

Finding the Fourth Proportional to 1,008,010.40, 1,512,015.60 and 672,087.20

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Solution

The fourth proportional to 1,008,010.40, 1,512,015.60 and 672,087.20 is: 1,008,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,010.40 : 1,512,015.60 = 672,087.20 : x
  2. Step 2: Convert to fraction form
    1,008,010.40/1,512,015.60 = 672,087.20/x
  3. Step 3: Cross multiply
    1,008,010.40x = 1,512,015.60 × 672,087.20
  4. Step 4: Simplify right side
    1,008,010.40x = 1,016,206,330,960.32
  5. Step 5: Solve for x
    x = 1,016,206,330,960.32/1,008,010.40
  6. Step 6: Final answer
    x = 1,008,130.80

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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.