Home / 824,826.40-1,238,161.20-770,682.40

Finding the Fourth Proportional to 824,826.40, 1,238,161.20 and 770,682.40

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Solution

The fourth proportional to 824,826.40, 1,238,161.20 and 770,682.40 is: 1,156,884.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,826.40 : 1,238,161.20 = 770,682.40 : x
  2. Step 2: Convert to fraction form
    824,826.40/1,238,161.20 = 770,682.40/x
  3. Step 3: Cross multiply
    824,826.40x = 1,238,161.20 × 770,682.40
  4. Step 4: Simplify right side
    824,826.40x = 954,229,045,202.88
  5. Step 5: Solve for x
    x = 954,229,045,202.88/824,826.40
  6. Step 6: Final answer
    x = 1,156,884.70

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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.