Home / 746,309.72-1,119,459-213,831.20

Finding the Fourth Proportional to 746,309.72, 1,119,459 and 213,831.20

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Solution

The fourth proportional to 746,309.72, 1,119,459 and 213,831.20 is: 320,745.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,309.72 : 1,119,459 = 213,831.20 : x
  2. Step 2: Convert to fraction form
    746,309.72/1,119,459 = 213,831.20/x
  3. Step 3: Cross multiply
    746,309.72x = 1,119,459 × 213,831.20
  4. Step 4: Simplify right side
    746,309.72x = 239,375,261,320.80
  5. Step 5: Solve for x
    x = 239,375,261,320.80/746,309.72
  6. Step 6: Final answer
    x = 320,745.20

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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.