Home / 668,891.20-1,003,336.80-313,941.10

Finding the Fourth Proportional to 668,891.20, 1,003,336.80 and 313,941.10

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Solution

The fourth proportional to 668,891.20, 1,003,336.80 and 313,941.10 is: 470,911.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,891.20 : 1,003,336.80 = 313,941.10 : x
  2. Step 2: Convert to fraction form
    668,891.20/1,003,336.80 = 313,941.10/x
  3. Step 3: Cross multiply
    668,891.20x = 1,003,336.80 × 313,941.10
  4. Step 4: Simplify right side
    668,891.20x = 314,988,658,662.48
  5. Step 5: Solve for x
    x = 314,988,658,662.48/668,891.20
  6. Step 6: Final answer
    x = 470,911.65

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Double scale
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Similar ratio
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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.