Home / 1,108,211.84-1,529,221.92-678,613.76

Finding the Fourth Proportional to 1,108,211.84, 1,529,221.92 and 678,613.76

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Solution

The fourth proportional to 1,108,211.84, 1,529,221.92 and 678,613.76 is: 936,419.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,211.84 : 1,529,221.92 = 678,613.76 : x
  2. Step 2: Convert to fraction form
    1,108,211.84/1,529,221.92 = 678,613.76/x
  3. Step 3: Cross multiply
    1,108,211.84x = 1,529,221.92 × 678,613.76
  4. Step 4: Simplify right side
    1,108,211.84x = 1,037,751,037,005.62
  5. Step 5: Solve for x
    x = 1,037,751,037,005.62/1,108,211.84
  6. Step 6: Final answer
    x = 936,419.37

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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.