Home / 1,209,954.24-1,810,371.15-721,831.23

Finding the Fourth Proportional to 1,209,954.24, 1,810,371.15 and 721,831.23

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Solution

The fourth proportional to 1,209,954.24, 1,810,371.15 and 721,831.23 is: 1,080,026.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,954.24 : 1,810,371.15 = 721,831.23 : x
  2. Step 2: Convert to fraction form
    1,209,954.24/1,810,371.15 = 721,831.23/x
  3. Step 3: Cross multiply
    1,209,954.24x = 1,810,371.15 × 721,831.23
  4. Step 4: Simplify right side
    1,209,954.24x = 1,306,782,433,961.01
  5. Step 5: Solve for x
    x = 1,306,782,433,961.01/1,209,954.24
  6. Step 6: Final answer
    x = 1,080,026.33

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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.