Home / 2,128,279.40-3,192,419.10-1,008,535.40

Finding the Fourth Proportional to 2,128,279.40, 3,192,419.10 and 1,008,535.40

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Solution

The fourth proportional to 2,128,279.40, 3,192,419.10 and 1,008,535.40 is: 1,512,803.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,279.40 : 3,192,419.10 = 1,008,535.40 : x
  2. Step 2: Convert to fraction form
    2,128,279.40/3,192,419.10 = 1,008,535.40/x
  3. Step 3: Cross multiply
    2,128,279.40x = 3,192,419.10 × 1,008,535.40
  4. Step 4: Simplify right side
    2,128,279.40x = 3,219,667,673,986.14
  5. Step 5: Solve for x
    x = 3,219,667,673,986.14/2,128,279.40
  6. Step 6: Final answer
    x = 1,512,803.10

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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.