Home / 703,540.40-1,056,722.66-419,784.59

Finding the Fourth Proportional to 703,540.40, 1,056,722.66 and 419,784.59

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Solution

The fourth proportional to 703,540.40, 1,056,722.66 and 419,784.59 is: 630,519.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,540.40 : 1,056,722.66 = 419,784.59 : x
  2. Step 2: Convert to fraction form
    703,540.40/1,056,722.66 = 419,784.59/x
  3. Step 3: Cross multiply
    703,540.40x = 1,056,722.66 × 419,784.59
  4. Step 4: Simplify right side
    703,540.40x = 443,595,881,189.27
  5. Step 5: Solve for x
    x = 443,595,881,189.27/703,540.40
  6. Step 6: Final answer
    x = 630,519.42

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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.