Home / 820,164.30-1,230,246.45-784,734.90

Finding the Fourth Proportional to 820,164.30, 1,230,246.45 and 784,734.90

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Solution

The fourth proportional to 820,164.30, 1,230,246.45 and 784,734.90 is: 1,177,102.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,164.30 : 1,230,246.45 = 784,734.90 : x
  2. Step 2: Convert to fraction form
    820,164.30/1,230,246.45 = 784,734.90/x
  3. Step 3: Cross multiply
    820,164.30x = 1,230,246.45 × 784,734.90
  4. Step 4: Simplify right side
    820,164.30x = 965,417,324,916.11
  5. Step 5: Solve for x
    x = 965,417,324,916.11/820,164.30
  6. Step 6: Final answer
    x = 1,177,102.35

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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.