Home / 721,355.82-1,082,282.40-322,272.06

Finding the Fourth Proportional to 721,355.82, 1,082,282.40 and 322,272.06

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Solution

The fourth proportional to 721,355.82, 1,082,282.40 and 322,272.06 is: 483,519.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,355.82 : 1,082,282.40 = 322,272.06 : x
  2. Step 2: Convert to fraction form
    721,355.82/1,082,282.40 = 322,272.06/x
  3. Step 3: Cross multiply
    721,355.82x = 1,082,282.40 × 322,272.06
  4. Step 4: Simplify right side
    721,355.82x = 348,789,378,549.74
  5. Step 5: Solve for x
    x = 348,789,378,549.74/721,355.82
  6. Step 6: Final answer
    x = 483,519.19

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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.