Home / 881,206.70-1,321,810.05-821,720.30

Finding the Fourth Proportional to 881,206.70, 1,321,810.05 and 821,720.30

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Solution

The fourth proportional to 881,206.70, 1,321,810.05 and 821,720.30 is: 1,232,580.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,206.70 : 1,321,810.05 = 821,720.30 : x
  2. Step 2: Convert to fraction form
    881,206.70/1,321,810.05 = 821,720.30/x
  3. Step 3: Cross multiply
    881,206.70x = 1,321,810.05 × 821,720.30
  4. Step 4: Simplify right side
    881,206.70x = 1,086,158,150,829.02
  5. Step 5: Solve for x
    x = 1,086,158,150,829.02/881,206.70
  6. Step 6: Final answer
    x = 1,232,580.45

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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.