Home / 767,123.09-1,148,982.17-496,380.69

Finding the Fourth Proportional to 767,123.09, 1,148,982.17 and 496,380.69

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Solution

The fourth proportional to 767,123.09, 1,148,982.17 and 496,380.69 is: 743,469.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,123.09 : 1,148,982.17 = 496,380.69 : x
  2. Step 2: Convert to fraction form
    767,123.09/1,148,982.17 = 496,380.69/x
  3. Step 3: Cross multiply
    767,123.09x = 1,148,982.17 × 496,380.69
  4. Step 4: Simplify right side
    767,123.09x = 570,332,559,860.39
  5. Step 5: Solve for x
    x = 570,332,559,860.39/767,123.09
  6. Step 6: Final answer
    x = 743,469.43

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1.5x scale

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.