Home / 821,481.60-1,232,222.40-725,059.20

Finding the Fourth Proportional to 821,481.60, 1,232,222.40 and 725,059.20

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Solution

The fourth proportional to 821,481.60, 1,232,222.40 and 725,059.20 is: 1,087,588.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,481.60 : 1,232,222.40 = 725,059.20 : x
  2. Step 2: Convert to fraction form
    821,481.60/1,232,222.40 = 725,059.20/x
  3. Step 3: Cross multiply
    821,481.60x = 1,232,222.40 × 725,059.20
  4. Step 4: Simplify right side
    821,481.60x = 893,434,187,566.08
  5. Step 5: Solve for x
    x = 893,434,187,566.08/821,481.60
  6. Step 6: Final answer
    x = 1,087,588.80

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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.