Home / 1,383,571.92-1,909,336.28-763,398.52

Finding the Fourth Proportional to 1,383,571.92, 1,909,336.28 and 763,398.52

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Solution

The fourth proportional to 1,383,571.92, 1,909,336.28 and 763,398.52 is: 1,053,493.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,571.92 : 1,909,336.28 = 763,398.52 : x
  2. Step 2: Convert to fraction form
    1,383,571.92/1,909,336.28 = 763,398.52/x
  3. Step 3: Cross multiply
    1,383,571.92x = 1,909,336.28 × 763,398.52
  4. Step 4: Simplify right side
    1,383,571.92x = 1,457,584,490,334.31
  5. Step 5: Solve for x
    x = 1,457,584,490,334.31/1,383,571.92
  6. Step 6: Final answer
    x = 1,053,493.84

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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.