Home / 2,078,437.20-3,117,007.80-816,651.60

Finding the Fourth Proportional to 2,078,437.20, 3,117,007.80 and 816,651.60

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Solution

The fourth proportional to 2,078,437.20, 3,117,007.80 and 816,651.60 is: 1,224,722.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,437.20 : 3,117,007.80 = 816,651.60 : x
  2. Step 2: Convert to fraction form
    2,078,437.20/3,117,007.80 = 816,651.60/x
  3. Step 3: Cross multiply
    2,078,437.20x = 3,117,007.80 × 816,651.60
  4. Step 4: Simplify right side
    2,078,437.20x = 2,545,509,407,082.48
  5. Step 5: Solve for x
    x = 2,545,509,407,082.48/2,078,437.20
  6. Step 6: Final answer
    x = 1,224,722.79

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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.