Home / 1,328,676-1,992,995.28-618,306.72

Finding the Fourth Proportional to 1,328,676, 1,992,995.28 and 618,306.72

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Solution

The fourth proportional to 1,328,676, 1,992,995.28 and 618,306.72 is: 927,451.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,676 : 1,992,995.28 = 618,306.72 : x
  2. Step 2: Convert to fraction form
    1,328,676/1,992,995.28 = 618,306.72/x
  3. Step 3: Cross multiply
    1,328,676x = 1,992,995.28 × 618,306.72
  4. Step 4: Simplify right side
    1,328,676x = 1,232,282,374,552.28
  5. Step 5: Solve for x
    x = 1,232,282,374,552.28/1,328,676
  6. Step 6: Final answer
    x = 927,451.37

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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.