Home / 538,196.24-742,701.48-311,862.80

Finding the Fourth Proportional to 538,196.24, 742,701.48 and 311,862.80

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Solution

The fourth proportional to 538,196.24, 742,701.48 and 311,862.80 is: 430,365.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,196.24 : 742,701.48 = 311,862.80 : x
  2. Step 2: Convert to fraction form
    538,196.24/742,701.48 = 311,862.80/x
  3. Step 3: Cross multiply
    538,196.24x = 742,701.48 × 311,862.80
  4. Step 4: Simplify right side
    538,196.24x = 231,620,963,116.94
  5. Step 5: Solve for x
    x = 231,620,963,116.94/538,196.24
  6. Step 6: Final answer
    x = 430,365.26

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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.