Home / 987,752.20-1,481,628.30-668,887.60

Finding the Fourth Proportional to 987,752.20, 1,481,628.30 and 668,887.60

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Solution

The fourth proportional to 987,752.20, 1,481,628.30 and 668,887.60 is: 1,003,331.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,752.20 : 1,481,628.30 = 668,887.60 : x
  2. Step 2: Convert to fraction form
    987,752.20/1,481,628.30 = 668,887.60/x
  3. Step 3: Cross multiply
    987,752.20x = 1,481,628.30 × 668,887.60
  4. Step 4: Simplify right side
    987,752.20x = 991,042,797,679.08
  5. Step 5: Solve for x
    x = 991,042,797,679.08/987,752.20
  6. Step 6: Final answer
    x = 1,003,331.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.