Home / 806,443.19-1,112,891.53-438,922.96

Finding the Fourth Proportional to 806,443.19, 1,112,891.53 and 438,922.96

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Solution

The fourth proportional to 806,443.19, 1,112,891.53 and 438,922.96 is: 605,713.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,443.19 : 1,112,891.53 = 438,922.96 : x
  2. Step 2: Convert to fraction form
    806,443.19/1,112,891.53 = 438,922.96/x
  3. Step 3: Cross multiply
    806,443.19x = 1,112,891.53 × 438,922.96
  4. Step 4: Simplify right side
    806,443.19x = 488,473,636,747.46
  5. Step 5: Solve for x
    x = 488,473,636,747.46/806,443.19
  6. Step 6: Final answer
    x = 605,713.64

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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.