Home / 681,479.97-939,804.46-538,581.39

Finding the Fourth Proportional to 681,479.97, 939,804.46 and 538,581.39

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Solution

The fourth proportional to 681,479.97, 939,804.46 and 538,581.39 is: 742,738.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,479.97 : 939,804.46 = 538,581.39 : x
  2. Step 2: Convert to fraction form
    681,479.97/939,804.46 = 538,581.39/x
  3. Step 3: Cross multiply
    681,479.97x = 939,804.46 × 538,581.39
  4. Step 4: Simplify right side
    681,479.97x = 506,161,192,395.00
  5. Step 5: Solve for x
    x = 506,161,192,395.00/681,479.97
  6. Step 6: Final answer
    x = 742,738.18

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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.