Home / 811,831.95-1,217,824.73-220,855.95

Finding the Fourth Proportional to 811,831.95, 1,217,824.73 and 220,855.95

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Solution

The fourth proportional to 811,831.95, 1,217,824.73 and 220,855.95 is: 331,304.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,831.95 : 1,217,824.73 = 220,855.95 : x
  2. Step 2: Convert to fraction form
    811,831.95/1,217,824.73 = 220,855.95/x
  3. Step 3: Cross multiply
    811,831.95x = 1,217,824.73 × 220,855.95
  4. Step 4: Simplify right side
    811,831.95x = 268,963,836,573.36
  5. Step 5: Solve for x
    x = 268,963,836,573.36/811,831.95
  6. Step 6: Final answer
    x = 331,304.82

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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.