Home / 787,839.89-1,087,204.28-481,893.81

Finding the Fourth Proportional to 787,839.89, 1,087,204.28 and 481,893.81

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Solution

The fourth proportional to 787,839.89, 1,087,204.28 and 481,893.81 is: 665,004.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,839.89 : 1,087,204.28 = 481,893.81 : x
  2. Step 2: Convert to fraction form
    787,839.89/1,087,204.28 = 481,893.81/x
  3. Step 3: Cross multiply
    787,839.89x = 1,087,204.28 × 481,893.81
  4. Step 4: Simplify right side
    787,839.89x = 523,917,008,506.22
  5. Step 5: Solve for x
    x = 523,917,008,506.22/787,839.89
  6. Step 6: Final answer
    x = 665,004.42

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1.5x scale

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.