Home / 2,166,747.45-2,990,108.79-1,199,876.57

Finding the Fourth Proportional to 2,166,747.45, 2,990,108.79 and 1,199,876.57

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Solution

The fourth proportional to 2,166,747.45, 2,990,108.79 and 1,199,876.57 is: 1,655,828.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,166,747.45 : 2,990,108.79 = 1,199,876.57 : x
  2. Step 2: Convert to fraction form
    2,166,747.45/2,990,108.79 = 1,199,876.57/x
  3. Step 3: Cross multiply
    2,166,747.45x = 2,990,108.79 × 1,199,876.57
  4. Step 4: Simplify right side
    2,166,747.45x = 3,587,761,478,872.05
  5. Step 5: Solve for x
    x = 3,587,761,478,872.05/2,166,747.45
  6. Step 6: Final answer
    x = 1,655,828.18

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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.