Home / 821,457.64-1,133,138.46-494,543.26

Finding the Fourth Proportional to 821,457.64, 1,133,138.46 and 494,543.26

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Solution

The fourth proportional to 821,457.64, 1,133,138.46 and 494,543.26 is: 682,184.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,457.64 : 1,133,138.46 = 494,543.26 : x
  2. Step 2: Convert to fraction form
    821,457.64/1,133,138.46 = 494,543.26/x
  3. Step 3: Cross multiply
    821,457.64x = 1,133,138.46 × 494,543.26
  4. Step 4: Simplify right side
    821,457.64x = 560,385,988,039.78
  5. Step 5: Solve for x
    x = 560,385,988,039.78/821,457.64
  6. Step 6: Final answer
    x = 682,184.89

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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.