Home / 668,864.70-1,003,297.06-313,914.60

Finding the Fourth Proportional to 668,864.70, 1,003,297.06 and 313,914.60

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Solution

The fourth proportional to 668,864.70, 1,003,297.06 and 313,914.60 is: 470,871.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,864.70 : 1,003,297.06 = 313,914.60 : x
  2. Step 2: Convert to fraction form
    668,864.70/1,003,297.06 = 313,914.60/x
  3. Step 3: Cross multiply
    668,864.70x = 1,003,297.06 × 313,914.60
  4. Step 4: Simplify right side
    668,864.70x = 314,949,595,271.08
  5. Step 5: Solve for x
    x = 314,949,595,271.08/668,864.70
  6. Step 6: Final answer
    x = 470,871.90

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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.