Home / 1,200,489-1,800,068.72-491,015.24

Finding the Fourth Proportional to 1,200,489, 1,800,068.72 and 491,015.24

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Solution

The fourth proportional to 1,200,489, 1,800,068.72 and 491,015.24 is: 736,250.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,489 : 1,800,068.72 = 491,015.24 : x
  2. Step 2: Convert to fraction form
    1,200,489/1,800,068.72 = 491,015.24/x
  3. Step 3: Cross multiply
    1,200,489x = 1,800,068.72 × 491,015.24
  4. Step 4: Simplify right side
    1,200,489x = 883,861,174,567.29
  5. Step 5: Solve for x
    x = 883,861,174,567.29/1,200,489
  6. Step 6: Final answer
    x = 736,250.96

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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.