Home / 787,986.12-1,087,461.60-481,966.56

Finding the Fourth Proportional to 787,986.12, 1,087,461.60 and 481,966.56

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Solution

The fourth proportional to 787,986.12, 1,087,461.60 and 481,966.56 is: 665,138.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,986.12 : 1,087,461.60 = 481,966.56 : x
  2. Step 2: Convert to fraction form
    787,986.12/1,087,461.60 = 481,966.56/x
  3. Step 3: Cross multiply
    787,986.12x = 1,087,461.60 × 481,966.56
  4. Step 4: Simplify right side
    787,986.12x = 524,120,126,484.10
  5. Step 5: Solve for x
    x = 524,120,126,484.10/787,986.12
  6. Step 6: Final answer
    x = 665,138.78

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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.