Home / 721,720.48-1,082,681.16-300,899.56

Finding the Fourth Proportional to 721,720.48, 1,082,681.16 and 300,899.56

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Solution

The fourth proportional to 721,720.48, 1,082,681.16 and 300,899.56 is: 451,391.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,720.48 : 1,082,681.16 = 300,899.56 : x
  2. Step 2: Convert to fraction form
    721,720.48/1,082,681.16 = 300,899.56/x
  3. Step 3: Cross multiply
    721,720.48x = 1,082,681.16 × 300,899.56
  4. Step 4: Simplify right side
    721,720.48x = 325,778,284,664.29
  5. Step 5: Solve for x
    x = 325,778,284,664.29/721,720.48
  6. Step 6: Final answer
    x = 451,391.22

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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.