Home / 699,542.10-965,529.46-409,288.74

Finding the Fourth Proportional to 699,542.10, 965,529.46 and 409,288.74

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Solution

The fourth proportional to 699,542.10, 965,529.46 and 409,288.74 is: 564,912.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,542.10 : 965,529.46 = 409,288.74 : x
  2. Step 2: Convert to fraction form
    699,542.10/965,529.46 = 409,288.74/x
  3. Step 3: Cross multiply
    699,542.10x = 965,529.46 × 409,288.74
  4. Step 4: Simplify right side
    699,542.10x = 395,180,336,116.28
  5. Step 5: Solve for x
    x = 395,180,336,116.28/699,542.10
  6. Step 6: Final answer
    x = 564,912.87

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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.