Home / 3,605,872.72-5,407,969.50-1,688,107

Finding the Fourth Proportional to 3,605,872.72, 5,407,969.50 and 1,688,107

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Solution

The fourth proportional to 3,605,872.72, 5,407,969.50 and 1,688,107 is: 2,531,767.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,605,872.72 : 5,407,969.50 = 1,688,107 : x
  2. Step 2: Convert to fraction form
    3,605,872.72/5,407,969.50 = 1,688,107/x
  3. Step 3: Cross multiply
    3,605,872.72x = 5,407,969.50 × 1,688,107
  4. Step 4: Simplify right side
    3,605,872.72x = 9,129,231,168,736.50
  5. Step 5: Solve for x
    x = 9,129,231,168,736.50/3,605,872.72
  6. Step 6: Final answer
    x = 2,531,767.45

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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.