Home / 988,830.30-1,481,277.15-515,782.20

Finding the Fourth Proportional to 988,830.30, 1,481,277.15 and 515,782.20

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Solution

The fourth proportional to 988,830.30, 1,481,277.15 and 515,782.20 is: 772,646.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,830.30 : 1,481,277.15 = 515,782.20 : x
  2. Step 2: Convert to fraction form
    988,830.30/1,481,277.15 = 515,782.20/x
  3. Step 3: Cross multiply
    988,830.30x = 1,481,277.15 × 515,782.20
  4. Step 4: Simplify right side
    988,830.30x = 764,016,387,236.73
  5. Step 5: Solve for x
    x = 764,016,387,236.73/988,830.30
  6. Step 6: Final answer
    x = 772,646.62

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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.