Home / 824,321.40-1,236,539.70-325,620.60

Finding the Fourth Proportional to 824,321.40, 1,236,539.70 and 325,620.60

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Solution

The fourth proportional to 824,321.40, 1,236,539.70 and 325,620.60 is: 488,453.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,321.40 : 1,236,539.70 = 325,620.60 : x
  2. Step 2: Convert to fraction form
    824,321.40/1,236,539.70 = 325,620.60/x
  3. Step 3: Cross multiply
    824,321.40x = 1,236,539.70 × 325,620.60
  4. Step 4: Simplify right side
    824,321.40x = 402,642,799,037.82
  5. Step 5: Solve for x
    x = 402,642,799,037.82/824,321.40
  6. Step 6: Final answer
    x = 488,453.65

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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.