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Finding the Fourth Proportional to 980,972.70, 1,471,459.05 and 925,860.30

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Solution

The fourth proportional to 980,972.70, 1,471,459.05 and 925,860.30 is: 1,388,790.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,972.70 : 1,471,459.05 = 925,860.30 : x
  2. Step 2: Convert to fraction form
    980,972.70/1,471,459.05 = 925,860.30/x
  3. Step 3: Cross multiply
    980,972.70x = 1,471,459.05 × 925,860.30
  4. Step 4: Simplify right side
    980,972.70x = 1,362,365,517,470.72
  5. Step 5: Solve for x
    x = 1,362,365,517,470.72/980,972.70
  6. Step 6: Final answer
    x = 1,388,790.45

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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.