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Finding the Fourth Proportional to 711,400.53, 1,067,100.81 and 290,676

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Solution

The fourth proportional to 711,400.53, 1,067,100.81 and 290,676 is: 436,014.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,400.53 : 1,067,100.81 = 290,676 : x
  2. Step 2: Convert to fraction form
    711,400.53/1,067,100.81 = 290,676/x
  3. Step 3: Cross multiply
    711,400.53x = 1,067,100.81 × 290,676
  4. Step 4: Simplify right side
    711,400.53x = 310,180,595,047.56
  5. Step 5: Solve for x
    x = 310,180,595,047.56/711,400.53
  6. Step 6: Final answer
    x = 436,014.01

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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.