Home / 1,215,876.12-1,677,038.83-853,380.87

Finding the Fourth Proportional to 1,215,876.12, 1,677,038.83 and 853,380.87

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Solution

The fourth proportional to 1,215,876.12, 1,677,038.83 and 853,380.87 is: 1,177,054.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,876.12 : 1,677,038.83 = 853,380.87 : x
  2. Step 2: Convert to fraction form
    1,215,876.12/1,677,038.83 = 853,380.87/x
  3. Step 3: Cross multiply
    1,215,876.12x = 1,677,038.83 × 853,380.87
  4. Step 4: Simplify right side
    1,215,876.12x = 1,431,152,852,147.10
  5. Step 5: Solve for x
    x = 1,431,152,852,147.10/1,215,876.12
  6. Step 6: Final answer
    x = 1,177,054.83

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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.