Home / 1,992,279.42-2,988,803.16-644,776.38

Finding the Fourth Proportional to 1,992,279.42, 2,988,803.16 and 644,776.38

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Solution

The fourth proportional to 1,992,279.42, 2,988,803.16 and 644,776.38 is: 967,288.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,279.42 : 2,988,803.16 = 644,776.38 : x
  2. Step 2: Convert to fraction form
    1,992,279.42/2,988,803.16 = 644,776.38/x
  3. Step 3: Cross multiply
    1,992,279.42x = 2,988,803.16 × 644,776.38
  4. Step 4: Simplify right side
    1,992,279.42x = 1,927,109,682,037.36
  5. Step 5: Solve for x
    x = 1,927,109,682,037.36/1,992,279.42
  6. Step 6: Final answer
    x = 967,288.86

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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.