Home / 484,520.40-668,631.49-269,660.43

Finding the Fourth Proportional to 484,520.40, 668,631.49 and 269,660.43

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Solution

The fourth proportional to 484,520.40, 668,631.49 and 269,660.43 is: 372,127.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,520.40 : 668,631.49 = 269,660.43 : x
  2. Step 2: Convert to fraction form
    484,520.40/668,631.49 = 269,660.43/x
  3. Step 3: Cross multiply
    484,520.40x = 668,631.49 × 269,660.43
  4. Step 4: Simplify right side
    484,520.40x = 180,303,454,430.79
  5. Step 5: Solve for x
    x = 180,303,454,430.79/484,520.40
  6. Step 6: Final answer
    x = 372,127.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.