Home / 401,742.48-554,403.10-220,457.44

Finding the Fourth Proportional to 401,742.48, 554,403.10 and 220,457.44

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Solution

The fourth proportional to 401,742.48, 554,403.10 and 220,457.44 is: 304,230.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,742.48 : 554,403.10 = 220,457.44 : x
  2. Step 2: Convert to fraction form
    401,742.48/554,403.10 = 220,457.44/x
  3. Step 3: Cross multiply
    401,742.48x = 554,403.10 × 220,457.44
  4. Step 4: Simplify right side
    401,742.48x = 122,222,288,154.06
  5. Step 5: Solve for x
    x = 122,222,288,154.06/401,742.48
  6. Step 6: Final answer
    x = 304,230.43

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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.