Home / 782,215.04-1,173,659.70-422,314.43

Finding the Fourth Proportional to 782,215.04, 1,173,659.70 and 422,314.43

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Solution

The fourth proportional to 782,215.04, 1,173,659.70 and 422,314.43 is: 633,653.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,215.04 : 1,173,659.70 = 422,314.43 : x
  2. Step 2: Convert to fraction form
    782,215.04/1,173,659.70 = 422,314.43/x
  3. Step 3: Cross multiply
    782,215.04x = 1,173,659.70 × 422,314.43
  4. Step 4: Simplify right side
    782,215.04x = 495,653,422,934.85
  5. Step 5: Solve for x
    x = 495,653,422,934.85/782,215.04
  6. Step 6: Final answer
    x = 633,653.66

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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.