Home / 1,292,122.40-1,940,257.20-976,935.20

Finding the Fourth Proportional to 1,292,122.40, 1,940,257.20 and 976,935.20

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Solution

The fourth proportional to 1,292,122.40, 1,940,257.20 and 976,935.20 is: 1,466,970.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,122.40 : 1,940,257.20 = 976,935.20 : x
  2. Step 2: Convert to fraction form
    1,292,122.40/1,940,257.20 = 976,935.20/x
  3. Step 3: Cross multiply
    1,292,122.40x = 1,940,257.20 × 976,935.20
  4. Step 4: Simplify right side
    1,292,122.40x = 1,895,505,555,733.44
  5. Step 5: Solve for x
    x = 1,895,505,555,733.44/1,292,122.40
  6. Step 6: Final answer
    x = 1,466,970.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.