Home / 869,786.64-1,200,309.84-487,833.84

Finding the Fourth Proportional to 869,786.64, 1,200,309.84 and 487,833.84

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Solution

The fourth proportional to 869,786.64, 1,200,309.84 and 487,833.84 is: 673,213.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,786.64 : 1,200,309.84 = 487,833.84 : x
  2. Step 2: Convert to fraction form
    869,786.64/1,200,309.84 = 487,833.84/x
  3. Step 3: Cross multiply
    869,786.64x = 1,200,309.84 × 487,833.84
  4. Step 4: Simplify right side
    869,786.64x = 585,551,758,436.99
  5. Step 5: Solve for x
    x = 585,551,758,436.99/869,786.64
  6. Step 6: Final answer
    x = 673,213.10

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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.