Home / 863,722.80-1,286,719.70-824,861.34

Finding the Fourth Proportional to 863,722.80, 1,286,719.70 and 824,861.34

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Solution

The fourth proportional to 863,722.80, 1,286,719.70 and 824,861.34 is: 1,228,826.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,722.80 : 1,286,719.70 = 824,861.34 : x
  2. Step 2: Convert to fraction form
    863,722.80/1,286,719.70 = 824,861.34/x
  3. Step 3: Cross multiply
    863,722.80x = 1,286,719.70 × 824,861.34
  4. Step 4: Simplify right side
    863,722.80x = 1,061,365,331,822.09
  5. Step 5: Solve for x
    x = 1,061,365,331,822.09/863,722.80
  6. Step 6: Final answer
    x = 1,228,826.35

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.