Home / 432,022.27-647,976.50-128,409.95

Finding the Fourth Proportional to 432,022.27, 647,976.50 and 128,409.95

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Solution

The fourth proportional to 432,022.27, 647,976.50 and 128,409.95 is: 192,598.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,022.27 : 647,976.50 = 128,409.95 : x
  2. Step 2: Convert to fraction form
    432,022.27/647,976.50 = 128,409.95/x
  3. Step 3: Cross multiply
    432,022.27x = 647,976.50 × 128,409.95
  4. Step 4: Simplify right side
    432,022.27x = 83,206,629,966.18
  5. Step 5: Solve for x
    x = 83,206,629,966.18/432,022.27
  6. Step 6: Final answer
    x = 192,598.01

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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.