Home / 689,179.50-1,033,769.31-215,901.75

Finding the Fourth Proportional to 689,179.50, 1,033,769.31 and 215,901.75

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Solution

The fourth proportional to 689,179.50, 1,033,769.31 and 215,901.75 is: 323,852.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,179.50 : 1,033,769.31 = 215,901.75 : x
  2. Step 2: Convert to fraction form
    689,179.50/1,033,769.31 = 215,901.75/x
  3. Step 3: Cross multiply
    689,179.50x = 1,033,769.31 × 215,901.75
  4. Step 4: Simplify right side
    689,179.50x = 223,192,603,125.29
  5. Step 5: Solve for x
    x = 223,192,603,125.29/689,179.50
  6. Step 6: Final answer
    x = 323,852.64

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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.