Home / 987,089.29-1,481,181.12-481,654.46

Finding the Fourth Proportional to 987,089.29, 1,481,181.12 and 481,654.46

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Solution

The fourth proportional to 987,089.29, 1,481,181.12 and 481,654.46 is: 722,748.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,089.29 : 1,481,181.12 = 481,654.46 : x
  2. Step 2: Convert to fraction form
    987,089.29/1,481,181.12 = 481,654.46/x
  3. Step 3: Cross multiply
    987,089.29x = 1,481,181.12 × 481,654.46
  4. Step 4: Simplify right side
    987,089.29x = 713,417,487,912.57
  5. Step 5: Solve for x
    x = 713,417,487,912.57/987,089.29
  6. Step 6: Final answer
    x = 722,748.68

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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.