Home / 2,811,239.64-4,216,859.37-681,323.76

Finding the Fourth Proportional to 2,811,239.64, 4,216,859.37 and 681,323.76

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Solution

The fourth proportional to 2,811,239.64, 4,216,859.37 and 681,323.76 is: 1,021,985.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811,239.64 : 4,216,859.37 = 681,323.76 : x
  2. Step 2: Convert to fraction form
    2,811,239.64/4,216,859.37 = 681,323.76/x
  3. Step 3: Cross multiply
    2,811,239.64x = 4,216,859.37 × 681,323.76
  4. Step 4: Simplify right side
    2,811,239.64x = 2,873,046,481,359.63
  5. Step 5: Solve for x
    x = 2,873,046,481,359.63/2,811,239.64
  6. Step 6: Final answer
    x = 1,021,985.62

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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.