Home / 818,842.46-1,228,644.12-313,236.30

Finding the Fourth Proportional to 818,842.46, 1,228,644.12 and 313,236.30

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Solution

The fourth proportional to 818,842.46, 1,228,644.12 and 313,236.30 is: 469,999.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,842.46 : 1,228,644.12 = 313,236.30 : x
  2. Step 2: Convert to fraction form
    818,842.46/1,228,644.12 = 313,236.30/x
  3. Step 3: Cross multiply
    818,842.46x = 1,228,644.12 × 313,236.30
  4. Step 4: Simplify right side
    818,842.46x = 384,855,938,165.56
  5. Step 5: Solve for x
    x = 384,855,938,165.56/818,842.46
  6. Step 6: Final answer
    x = 469,999.98

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Double scale
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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.