Home / 987,078.30-1,481,200.65-720,167.10

Finding the Fourth Proportional to 987,078.30, 1,481,200.65 and 720,167.10

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Solution

The fourth proportional to 987,078.30, 1,481,200.65 and 720,167.10 is: 1,080,676.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,078.30 : 1,481,200.65 = 720,167.10 : x
  2. Step 2: Convert to fraction form
    987,078.30/1,481,200.65 = 720,167.10/x
  3. Step 3: Cross multiply
    987,078.30x = 1,481,200.65 × 720,167.10
  4. Step 4: Simplify right side
    987,078.30x = 1,066,711,976,628.61
  5. Step 5: Solve for x
    x = 1,066,711,976,628.61/987,078.30
  6. Step 6: Final answer
    x = 1,080,676.15

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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.