Home / 748,042.47-1,121,315.43-268,139.73

Finding the Fourth Proportional to 748,042.47, 1,121,315.43 and 268,139.73

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Solution

The fourth proportional to 748,042.47, 1,121,315.43 and 268,139.73 is: 401,941.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,042.47 : 1,121,315.43 = 268,139.73 : x
  2. Step 2: Convert to fraction form
    748,042.47/1,121,315.43 = 268,139.73/x
  3. Step 3: Cross multiply
    748,042.47x = 1,121,315.43 × 268,139.73
  4. Step 4: Simplify right side
    748,042.47x = 300,669,216,645.03
  5. Step 5: Solve for x
    x = 300,669,216,645.03/748,042.47
  6. Step 6: Final answer
    x = 401,941.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.