Home / 668,214.20-1,002,321.30-313,920.20

Finding the Fourth Proportional to 668,214.20, 1,002,321.30 and 313,920.20

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Solution

The fourth proportional to 668,214.20, 1,002,321.30 and 313,920.20 is: 470,880.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,214.20 : 1,002,321.30 = 313,920.20 : x
  2. Step 2: Convert to fraction form
    668,214.20/1,002,321.30 = 313,920.20/x
  3. Step 3: Cross multiply
    668,214.20x = 1,002,321.30 × 313,920.20
  4. Step 4: Simplify right side
    668,214.20x = 314,648,902,960.26
  5. Step 5: Solve for x
    x = 314,648,902,960.26/668,214.20
  6. Step 6: Final answer
    x = 470,880.30

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Similar ratio
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1.5x scale

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.