Home / 1,200,512.85-1,800,772.29-490,540.86

Finding the Fourth Proportional to 1,200,512.85, 1,800,772.29 and 490,540.86

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Solution

The fourth proportional to 1,200,512.85, 1,800,772.29 and 490,540.86 is: 735,812.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,512.85 : 1,800,772.29 = 490,540.86 : x
  2. Step 2: Convert to fraction form
    1,200,512.85/1,800,772.29 = 490,540.86/x
  3. Step 3: Cross multiply
    1,200,512.85x = 1,800,772.29 × 490,540.86
  4. Step 4: Simplify right side
    1,200,512.85x = 883,352,387,800.77
  5. Step 5: Solve for x
    x = 883,352,387,800.77/1,200,512.85
  6. Step 6: Final answer
    x = 735,812.52

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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.