Home / 711,101.20-1,067,880.60-379,325.20

Finding the Fourth Proportional to 711,101.20, 1,067,880.60 and 379,325.20

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Solution

The fourth proportional to 711,101.20, 1,067,880.60 and 379,325.20 is: 569,643.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,101.20 : 1,067,880.60 = 379,325.20 : x
  2. Step 2: Convert to fraction form
    711,101.20/1,067,880.60 = 379,325.20/x
  3. Step 3: Cross multiply
    711,101.20x = 1,067,880.60 × 379,325.20
  4. Step 4: Simplify right side
    711,101.20x = 405,074,022,171.12
  5. Step 5: Solve for x
    x = 405,074,022,171.12/711,101.20
  6. Step 6: Final answer
    x = 569,643.28

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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.