Home / 412,918.16-619,378.04-113,402.64

Finding the Fourth Proportional to 412,918.16, 619,378.04 and 113,402.64

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Solution

The fourth proportional to 412,918.16, 619,378.04 and 113,402.64 is: 170,104.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,918.16 : 619,378.04 = 113,402.64 : x
  2. Step 2: Convert to fraction form
    412,918.16/619,378.04 = 113,402.64/x
  3. Step 3: Cross multiply
    412,918.16x = 619,378.04 × 113,402.64
  4. Step 4: Simplify right side
    412,918.16x = 70,239,104,894.03
  5. Step 5: Solve for x
    x = 70,239,104,894.03/412,918.16
  6. Step 6: Final answer
    x = 170,104.18

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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.