Home / 782,223.04-1,173,671.68-422,322.40

Finding the Fourth Proportional to 782,223.04, 1,173,671.68 and 422,322.40

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Solution

The fourth proportional to 782,223.04, 1,173,671.68 and 422,322.40 is: 633,665.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,223.04 : 1,173,671.68 = 422,322.40 : x
  2. Step 2: Convert to fraction form
    782,223.04/1,173,671.68 = 422,322.40/x
  3. Step 3: Cross multiply
    782,223.04x = 1,173,671.68 × 422,322.40
  4. Step 4: Simplify right side
    782,223.04x = 495,667,840,709.63
  5. Step 5: Solve for x
    x = 495,667,840,709.63/782,223.04
  6. Step 6: Final answer
    x = 633,665.61

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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.