Home / 811,525.96-1,217,051-305,722

Finding the Fourth Proportional to 811,525.96, 1,217,051 and 305,722

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Solution

The fourth proportional to 811,525.96, 1,217,051 and 305,722 is: 458,493.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,525.96 : 1,217,051 = 305,722 : x
  2. Step 2: Convert to fraction form
    811,525.96/1,217,051 = 305,722/x
  3. Step 3: Cross multiply
    811,525.96x = 1,217,051 × 305,722
  4. Step 4: Simplify right side
    811,525.96x = 372,079,265,822
  5. Step 5: Solve for x
    x = 372,079,265,822/811,525.96
  6. Step 6: Final answer
    x = 458,493.36

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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.