Home / 1,155,720.20-1,735,548.60-821,109.20

Finding the Fourth Proportional to 1,155,720.20, 1,735,548.60 and 821,109.20

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Solution

The fourth proportional to 1,155,720.20, 1,735,548.60 and 821,109.20 is: 1,233,062.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,155,720.20 : 1,735,548.60 = 821,109.20 : x
  2. Step 2: Convert to fraction form
    1,155,720.20/1,735,548.60 = 821,109.20/x
  3. Step 3: Cross multiply
    1,155,720.20x = 1,735,548.60 × 821,109.20
  4. Step 4: Simplify right side
    1,155,720.20x = 1,425,074,922,507.12
  5. Step 5: Solve for x
    x = 1,425,074,922,507.12/1,155,720.20
  6. Step 6: Final answer
    x = 1,233,062.23

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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.