Home / 557,221.44-769,046.88-312,222.77

Finding the Fourth Proportional to 557,221.44, 769,046.88 and 312,222.77

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Solution

The fourth proportional to 557,221.44, 769,046.88 and 312,222.77 is: 430,912.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,221.44 : 769,046.88 = 312,222.77 : x
  2. Step 2: Convert to fraction form
    557,221.44/769,046.88 = 312,222.77/x
  3. Step 3: Cross multiply
    557,221.44x = 769,046.88 × 312,222.77
  4. Step 4: Simplify right side
    557,221.44x = 240,113,947,133.46
  5. Step 5: Solve for x
    x = 240,113,947,133.46/557,221.44
  6. Step 6: Final answer
    x = 430,912.97

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1.5x scale

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.