Home / 1,292,123.40-1,940,258.70-976,936.20

Finding the Fourth Proportional to 1,292,123.40, 1,940,258.70 and 976,936.20

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Solution

The fourth proportional to 1,292,123.40, 1,940,258.70 and 976,936.20 is: 1,466,972.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,123.40 : 1,940,258.70 = 976,936.20 : x
  2. Step 2: Convert to fraction form
    1,292,123.40/1,940,258.70 = 976,936.20/x
  3. Step 3: Cross multiply
    1,292,123.40x = 1,940,258.70 × 976,936.20
  4. Step 4: Simplify right side
    1,292,123.40x = 1,895,508,961,394.94
  5. Step 5: Solve for x
    x = 1,895,508,961,394.94/1,292,123.40
  6. Step 6: Final answer
    x = 1,466,972.09

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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.