Home / 455,313.80-682,970.70-322,344.20

Finding the Fourth Proportional to 455,313.80, 682,970.70 and 322,344.20

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Solution

The fourth proportional to 455,313.80, 682,970.70 and 322,344.20 is: 483,516.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,313.80 : 682,970.70 = 322,344.20 : x
  2. Step 2: Convert to fraction form
    455,313.80/682,970.70 = 322,344.20/x
  3. Step 3: Cross multiply
    455,313.80x = 682,970.70 × 322,344.20
  4. Step 4: Simplify right side
    455,313.80x = 220,151,643,914.94
  5. Step 5: Solve for x
    x = 220,151,643,914.94/455,313.80
  6. Step 6: Final answer
    x = 483,516.30

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Similar ratio
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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.