Home / 987,786.80-1,481,680.20-972,040.40

Finding the Fourth Proportional to 987,786.80, 1,481,680.20 and 972,040.40

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Solution

The fourth proportional to 987,786.80, 1,481,680.20 and 972,040.40 is: 1,458,060.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,786.80 : 1,481,680.20 = 972,040.40 : x
  2. Step 2: Convert to fraction form
    987,786.80/1,481,680.20 = 972,040.40/x
  3. Step 3: Cross multiply
    987,786.80x = 1,481,680.20 × 972,040.40
  4. Step 4: Simplify right side
    987,786.80x = 1,440,253,014,280.08
  5. Step 5: Solve for x
    x = 1,440,253,014,280.08/987,786.80
  6. Step 6: Final answer
    x = 1,458,060.60

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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.