Home / 728,162.26-1,004,897.95-405,874.70

Finding the Fourth Proportional to 728,162.26, 1,004,897.95 and 405,874.70

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Solution

The fourth proportional to 728,162.26, 1,004,897.95 and 405,874.70 is: 560,126.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,162.26 : 1,004,897.95 = 405,874.70 : x
  2. Step 2: Convert to fraction form
    728,162.26/1,004,897.95 = 405,874.70/x
  3. Step 3: Cross multiply
    728,162.26x = 1,004,897.95 × 405,874.70
  4. Step 4: Simplify right side
    728,162.26x = 407,862,651,716.06
  5. Step 5: Solve for x
    x = 407,862,651,716.06/728,162.26
  6. Step 6: Final answer
    x = 560,126.05

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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.