Home / 669,398.51-1,004,130.05-220,109.43

Finding the Fourth Proportional to 669,398.51, 1,004,130.05 and 220,109.43

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Solution

The fourth proportional to 669,398.51, 1,004,130.05 and 220,109.43 is: 330,174.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,398.51 : 1,004,130.05 = 220,109.43 : x
  2. Step 2: Convert to fraction form
    669,398.51/1,004,130.05 = 220,109.43/x
  3. Step 3: Cross multiply
    669,398.51x = 1,004,130.05 × 220,109.43
  4. Step 4: Simplify right side
    669,398.51x = 221,018,491,850.82
  5. Step 5: Solve for x
    x = 221,018,491,850.82/669,398.51
  6. Step 6: Final answer
    x = 330,174.76

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Double scale
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Similar ratio
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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.