Home / 1,620,288.28-2,236,187.82-976,033.72

Finding the Fourth Proportional to 1,620,288.28, 2,236,187.82 and 976,033.72

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Solution

The fourth proportional to 1,620,288.28, 2,236,187.82 and 976,033.72 is: 1,347,040.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,288.28 : 2,236,187.82 = 976,033.72 : x
  2. Step 2: Convert to fraction form
    1,620,288.28/2,236,187.82 = 976,033.72/x
  3. Step 3: Cross multiply
    1,620,288.28x = 2,236,187.82 × 976,033.72
  4. Step 4: Simplify right side
    1,620,288.28x = 2,182,594,716,573.29
  5. Step 5: Solve for x
    x = 2,182,594,716,573.29/1,620,288.28
  6. Step 6: Final answer
    x = 1,347,040.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.