Home / 668,892.20-1,003,338.30-313,942.10

Finding the Fourth Proportional to 668,892.20, 1,003,338.30 and 313,942.10

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Solution

The fourth proportional to 668,892.20, 1,003,338.30 and 313,942.10 is: 470,913.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,892.20 : 1,003,338.30 = 313,942.10 : x
  2. Step 2: Convert to fraction form
    668,892.20/1,003,338.30 = 313,942.10/x
  3. Step 3: Cross multiply
    668,892.20x = 1,003,338.30 × 313,942.10
  4. Step 4: Simplify right side
    668,892.20x = 314,990,132,912.43
  5. Step 5: Solve for x
    x = 314,990,132,912.43/668,892.20
  6. Step 6: Final answer
    x = 470,913.15

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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.