Home / 806,277.61-1,112,648.71-438,742.21

Finding the Fourth Proportional to 806,277.61, 1,112,648.71 and 438,742.21

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Solution

The fourth proportional to 806,277.61, 1,112,648.71 and 438,742.21 is: 605,456.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,277.61 : 1,112,648.71 = 438,742.21 : x
  2. Step 2: Convert to fraction form
    806,277.61/1,112,648.71 = 438,742.21/x
  3. Step 3: Cross multiply
    806,277.61x = 1,112,648.71 × 438,742.21
  4. Step 4: Simplify right side
    806,277.61x = 488,165,953,979.05
  5. Step 5: Solve for x
    x = 488,165,953,979.05/806,277.61
  6. Step 6: Final answer
    x = 605,456.42

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.