Home / 691,905.44-1,037,983.62-313,004.72

Finding the Fourth Proportional to 691,905.44, 1,037,983.62 and 313,004.72

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Solution

The fourth proportional to 691,905.44, 1,037,983.62 and 313,004.72 is: 469,563.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,905.44 : 1,037,983.62 = 313,004.72 : x
  2. Step 2: Convert to fraction form
    691,905.44/1,037,983.62 = 313,004.72/x
  3. Step 3: Cross multiply
    691,905.44x = 1,037,983.62 × 313,004.72
  4. Step 4: Simplify right side
    691,905.44x = 324,893,772,342.69
  5. Step 5: Solve for x
    x = 324,893,772,342.69/691,905.44
  6. Step 6: Final answer
    x = 469,563.84

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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.