Home / 819,188.60-1,130,965.25-728,293.51

Finding the Fourth Proportional to 819,188.60, 1,130,965.25 and 728,293.51

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Solution

The fourth proportional to 819,188.60, 1,130,965.25 and 728,293.51 is: 1,005,476.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,188.60 : 1,130,965.25 = 728,293.51 : x
  2. Step 2: Convert to fraction form
    819,188.60/1,130,965.25 = 728,293.51/x
  3. Step 3: Cross multiply
    819,188.60x = 1,130,965.25 × 728,293.51
  4. Step 4: Simplify right side
    819,188.60x = 823,674,650,603.85
  5. Step 5: Solve for x
    x = 823,674,650,603.85/819,188.60
  6. Step 6: Final answer
    x = 1,005,476.21

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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.