Home / 806,398.31-1,112,829.77-438,876.83

Finding the Fourth Proportional to 806,398.31, 1,112,829.77 and 438,876.83

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Solution

The fourth proportional to 806,398.31, 1,112,829.77 and 438,876.83 is: 605,650.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,398.31 : 1,112,829.77 = 438,876.83 : x
  2. Step 2: Convert to fraction form
    806,398.31/1,112,829.77 = 438,876.83/x
  3. Step 3: Cross multiply
    806,398.31x = 1,112,829.77 × 438,876.83
  4. Step 4: Simplify right side
    806,398.31x = 488,395,201,787.23
  5. Step 5: Solve for x
    x = 488,395,201,787.23/806,398.31
  6. Step 6: Final answer
    x = 605,650.08

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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.