Home / 468,583.88-646,741.14-317,729.48

Finding the Fourth Proportional to 468,583.88, 646,741.14 and 317,729.48

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Solution

The fourth proportional to 468,583.88, 646,741.14 and 317,729.48 is: 438,531.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,583.88 : 646,741.14 = 317,729.48 : x
  2. Step 2: Convert to fraction form
    468,583.88/646,741.14 = 317,729.48/x
  3. Step 3: Cross multiply
    468,583.88x = 646,741.14 × 317,729.48
  4. Step 4: Simplify right side
    468,583.88x = 205,488,726,106.81
  5. Step 5: Solve for x
    x = 205,488,726,106.81/468,583.88
  6. Step 6: Final answer
    x = 438,531.36

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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.