Home / 1,253,106.10-1,729,288.38-680,146.54

Finding the Fourth Proportional to 1,253,106.10, 1,729,288.38 and 680,146.54

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Solution

The fourth proportional to 1,253,106.10, 1,729,288.38 and 680,146.54 is: 938,603.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,106.10 : 1,729,288.38 = 680,146.54 : x
  2. Step 2: Convert to fraction form
    1,253,106.10/1,729,288.38 = 680,146.54/x
  3. Step 3: Cross multiply
    1,253,106.10x = 1,729,288.38 × 680,146.54
  4. Step 4: Simplify right side
    1,253,106.10x = 1,176,169,508,319.21
  5. Step 5: Solve for x
    x = 1,176,169,508,319.21/1,253,106.10
  6. Step 6: Final answer
    x = 938,603.29

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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.