Home / 1,213,155.70-1,816,234.35-814,246.90

Finding the Fourth Proportional to 1,213,155.70, 1,816,234.35 and 814,246.90

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Solution

The fourth proportional to 1,213,155.70, 1,816,234.35 and 814,246.90 is: 1,219,021.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,155.70 : 1,816,234.35 = 814,246.90 : x
  2. Step 2: Convert to fraction form
    1,213,155.70/1,816,234.35 = 814,246.90/x
  3. Step 3: Cross multiply
    1,213,155.70x = 1,816,234.35 × 814,246.90
  4. Step 4: Simplify right side
    1,213,155.70x = 1,478,863,189,161.02
  5. Step 5: Solve for x
    x = 1,478,863,189,161.02/1,213,155.70
  6. Step 6: Final answer
    x = 1,219,021.75

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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.