Home / 668,212.20-1,002,318.30-313,918.20

Finding the Fourth Proportional to 668,212.20, 1,002,318.30 and 313,918.20

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Solution

The fourth proportional to 668,212.20, 1,002,318.30 and 313,918.20 is: 470,877.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,212.20 : 1,002,318.30 = 313,918.20 : x
  2. Step 2: Convert to fraction form
    668,212.20/1,002,318.30 = 313,918.20/x
  3. Step 3: Cross multiply
    668,212.20x = 1,002,318.30 × 313,918.20
  4. Step 4: Simplify right side
    668,212.20x = 314,645,956,563.06
  5. Step 5: Solve for x
    x = 314,645,956,563.06/668,212.20
  6. Step 6: Final answer
    x = 470,877.30

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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.