Home / 728,696.23-1,006,007.33-511,571.19

Finding the Fourth Proportional to 728,696.23, 1,006,007.33 and 511,571.19

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Solution

The fourth proportional to 728,696.23, 1,006,007.33 and 511,571.19 is: 706,253.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,696.23 : 1,006,007.33 = 511,571.19 : x
  2. Step 2: Convert to fraction form
    728,696.23/1,006,007.33 = 511,571.19/x
  3. Step 3: Cross multiply
    728,696.23x = 1,006,007.33 × 511,571.19
  4. Step 4: Simplify right side
    728,696.23x = 514,644,366,956.82
  5. Step 5: Solve for x
    x = 514,644,366,956.82/728,696.23
  6. Step 6: Final answer
    x = 706,253.64

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Double scale
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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.