Home / 1,988,538.76-2,983,198.02-790,237.72

Finding the Fourth Proportional to 1,988,538.76, 2,983,198.02 and 790,237.72

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Solution

The fourth proportional to 1,988,538.76, 2,983,198.02 and 790,237.72 is: 1,185,511.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,538.76 : 2,983,198.02 = 790,237.72 : x
  2. Step 2: Convert to fraction form
    1,988,538.76/2,983,198.02 = 790,237.72/x
  3. Step 3: Cross multiply
    1,988,538.76x = 2,983,198.02 × 790,237.72
  4. Step 4: Simplify right side
    1,988,538.76x = 2,357,435,601,633.31
  5. Step 5: Solve for x
    x = 2,357,435,601,633.31/1,988,538.76
  6. Step 6: Final answer
    x = 1,185,511.52

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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.