Home / 689,102.42-1,033,653.64-215,824.82

Finding the Fourth Proportional to 689,102.42, 1,033,653.64 and 215,824.82

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Solution

The fourth proportional to 689,102.42, 1,033,653.64 and 215,824.82 is: 323,737.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,102.42 : 1,033,653.64 = 215,824.82 : x
  2. Step 2: Convert to fraction form
    689,102.42/1,033,653.64 = 215,824.82/x
  3. Step 3: Cross multiply
    689,102.42x = 1,033,653.64 × 215,824.82
  4. Step 4: Simplify right side
    689,102.42x = 223,088,110,795.35
  5. Step 5: Solve for x
    x = 223,088,110,795.35/689,102.42
  6. Step 6: Final answer
    x = 323,737.23

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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.