Home / 481,923.12-665,071.08-290,899.20

Finding the Fourth Proportional to 481,923.12, 665,071.08 and 290,899.20

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Solution

The fourth proportional to 481,923.12, 665,071.08 and 290,899.20 is: 401,451.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,923.12 : 665,071.08 = 290,899.20 : x
  2. Step 2: Convert to fraction form
    481,923.12/665,071.08 = 290,899.20/x
  3. Step 3: Cross multiply
    481,923.12x = 665,071.08 × 290,899.20
  4. Step 4: Simplify right side
    481,923.12x = 193,468,645,115.14
  5. Step 5: Solve for x
    x = 193,468,645,115.14/481,923.12
  6. Step 6: Final answer
    x = 401,451.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.