Home / 1,992,271.44-2,988,791.12-644,768.40

Finding the Fourth Proportional to 1,992,271.44, 2,988,791.12 and 644,768.40

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Solution

The fourth proportional to 1,992,271.44, 2,988,791.12 and 644,768.40 is: 967,276.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,271.44 : 2,988,791.12 = 644,768.40 : x
  2. Step 2: Convert to fraction form
    1,992,271.44/2,988,791.12 = 644,768.40/x
  3. Step 3: Cross multiply
    1,992,271.44x = 2,988,791.12 × 644,768.40
  4. Step 4: Simplify right side
    1,992,271.44x = 1,927,078,068,376.61
  5. Step 5: Solve for x
    x = 1,927,078,068,376.61/1,992,271.44
  6. Step 6: Final answer
    x = 967,276.86

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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.