Home / 728,516.64-1,005,360.29-401,843.61

Finding the Fourth Proportional to 728,516.64, 1,005,360.29 and 401,843.61

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Solution

The fourth proportional to 728,516.64, 1,005,360.29 and 401,843.61 is: 554,548.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,516.64 : 1,005,360.29 = 401,843.61 : x
  2. Step 2: Convert to fraction form
    728,516.64/1,005,360.29 = 401,843.61/x
  3. Step 3: Cross multiply
    728,516.64x = 1,005,360.29 × 401,843.61
  4. Step 4: Simplify right side
    728,516.64x = 403,997,613,011.72
  5. Step 5: Solve for x
    x = 403,997,613,011.72/728,516.64
  6. Step 6: Final answer
    x = 554,548.23

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