Home / 1,005,120.76-1,507,903.44-331,174.84

Finding the Fourth Proportional to 1,005,120.76, 1,507,903.44 and 331,174.84

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Solution

The fourth proportional to 1,005,120.76, 1,507,903.44 and 331,174.84 is: 496,835.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,120.76 : 1,507,903.44 = 331,174.84 : x
  2. Step 2: Convert to fraction form
    1,005,120.76/1,507,903.44 = 331,174.84/x
  3. Step 3: Cross multiply
    1,005,120.76x = 1,507,903.44 × 331,174.84
  4. Step 4: Simplify right side
    1,005,120.76x = 499,379,680,477.45
  5. Step 5: Solve for x
    x = 499,379,680,477.45/1,005,120.76
  6. Step 6: Final answer
    x = 496,835.51

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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.