Home / 1,989,930.24-2,984,603.76-978,780.78

Finding the Fourth Proportional to 1,989,930.24, 2,984,603.76 and 978,780.78

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Solution

The fourth proportional to 1,989,930.24, 2,984,603.76 and 978,780.78 is: 1,468,027.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,930.24 : 2,984,603.76 = 978,780.78 : x
  2. Step 2: Convert to fraction form
    1,989,930.24/2,984,603.76 = 978,780.78/x
  3. Step 3: Cross multiply
    1,989,930.24x = 2,984,603.76 × 978,780.78
  4. Step 4: Simplify right side
    1,989,930.24x = 2,921,272,796,203.73
  5. Step 5: Solve for x
    x = 2,921,272,796,203.73/1,989,930.24
  6. Step 6: Final answer
    x = 1,468,027.74

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