Home / 821,610.40-1,232,415.60-289,213.60

Finding the Fourth Proportional to 821,610.40, 1,232,415.60 and 289,213.60

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Solution

The fourth proportional to 821,610.40, 1,232,415.60 and 289,213.60 is: 433,820.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,610.40 : 1,232,415.60 = 289,213.60 : x
  2. Step 2: Convert to fraction form
    821,610.40/1,232,415.60 = 289,213.60/x
  3. Step 3: Cross multiply
    821,610.40x = 1,232,415.60 × 289,213.60
  4. Step 4: Simplify right side
    821,610.40x = 356,431,352,372.16
  5. Step 5: Solve for x
    x = 356,431,352,372.16/821,610.40
  6. Step 6: Final answer
    x = 433,820.40

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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.