Home / 1,390,831.28-2,086,143.24-444,302

Finding the Fourth Proportional to 1,390,831.28, 2,086,143.24 and 444,302

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Solution

The fourth proportional to 1,390,831.28, 2,086,143.24 and 444,302 is: 666,419.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,831.28 : 2,086,143.24 = 444,302 : x
  2. Step 2: Convert to fraction form
    1,390,831.28/2,086,143.24 = 444,302/x
  3. Step 3: Cross multiply
    1,390,831.28x = 2,086,143.24 × 444,302
  4. Step 4: Simplify right side
    1,390,831.28x = 926,877,613,818.48
  5. Step 5: Solve for x
    x = 926,877,613,818.48/1,390,831.28
  6. Step 6: Final answer
    x = 666,419.88

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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.