Home / 880,832.78-1,215,528.99-513,286.51

Finding the Fourth Proportional to 880,832.78, 1,215,528.99 and 513,286.51

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Solution

The fourth proportional to 880,832.78, 1,215,528.99 and 513,286.51 is: 708,323.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,832.78 : 1,215,528.99 = 513,286.51 : x
  2. Step 2: Convert to fraction form
    880,832.78/1,215,528.99 = 513,286.51/x
  3. Step 3: Cross multiply
    880,832.78x = 1,215,528.99 × 513,286.51
  4. Step 4: Simplify right side
    880,832.78x = 623,914,633,080.93
  5. Step 5: Solve for x
    x = 623,914,633,080.93/880,832.78
  6. Step 6: Final answer
    x = 708,323.59

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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.