Home / 1,982,379.90-2,735,740.32-1,122,939.90

Finding the Fourth Proportional to 1,982,379.90, 2,735,740.32 and 1,122,939.90

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Solution

The fourth proportional to 1,982,379.90, 2,735,740.32 and 1,122,939.90 is: 1,549,688.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,982,379.90 : 2,735,740.32 = 1,122,939.90 : x
  2. Step 2: Convert to fraction form
    1,982,379.90/2,735,740.32 = 1,122,939.90/x
  3. Step 3: Cross multiply
    1,982,379.90x = 2,735,740.32 × 1,122,939.90
  4. Step 4: Simplify right side
    1,982,379.90x = 3,072,071,961,366.77
  5. Step 5: Solve for x
    x = 3,072,071,961,366.77/1,982,379.90
  6. Step 6: Final answer
    x = 1,549,688.82

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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.