Home / 1,375,143.54-1,897,662.51-763,264.68

Finding the Fourth Proportional to 1,375,143.54, 1,897,662.51 and 763,264.68

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Solution

The fourth proportional to 1,375,143.54, 1,897,662.51 and 763,264.68 is: 1,053,285.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,143.54 : 1,897,662.51 = 763,264.68 : x
  2. Step 2: Convert to fraction form
    1,375,143.54/1,897,662.51 = 763,264.68/x
  3. Step 3: Cross multiply
    1,375,143.54x = 1,897,662.51 × 763,264.68
  4. Step 4: Simplify right side
    1,375,143.54x = 1,448,418,768,443.15
  5. Step 5: Solve for x
    x = 1,448,418,768,443.15/1,375,143.54
  6. Step 6: Final answer
    x = 1,053,285.51

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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.