Home / 2,078,489.20-3,117,085.80-816,703.60

Finding the Fourth Proportional to 2,078,489.20, 3,117,085.80 and 816,703.60

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Solution

The fourth proportional to 2,078,489.20, 3,117,085.80 and 816,703.60 is: 1,224,800.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,489.20 : 3,117,085.80 = 816,703.60 : x
  2. Step 2: Convert to fraction form
    2,078,489.20/3,117,085.80 = 816,703.60/x
  3. Step 3: Cross multiply
    2,078,489.20x = 3,117,085.80 × 816,703.60
  4. Step 4: Simplify right side
    2,078,489.20x = 2,545,735,194,368.88
  5. Step 5: Solve for x
    x = 2,545,735,194,368.88/2,078,489.20
  6. Step 6: Final answer
    x = 1,224,800.78

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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.