Home / 991,371.48-1,368,100.98-538,662.48

Finding the Fourth Proportional to 991,371.48, 1,368,100.98 and 538,662.48

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Solution

The fourth proportional to 991,371.48, 1,368,100.98 and 538,662.48 is: 743,358.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,371.48 : 1,368,100.98 = 538,662.48 : x
  2. Step 2: Convert to fraction form
    991,371.48/1,368,100.98 = 538,662.48/x
  3. Step 3: Cross multiply
    991,371.48x = 1,368,100.98 × 538,662.48
  4. Step 4: Simplify right side
    991,371.48x = 736,944,666,777.23
  5. Step 5: Solve for x
    x = 736,944,666,777.23/991,371.48
  6. Step 6: Final answer
    x = 743,358.75

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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.