Home / 2,713,708.70-4,071,153.45-820,400.70

Finding the Fourth Proportional to 2,713,708.70, 4,071,153.45 and 820,400.70

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Solution

The fourth proportional to 2,713,708.70, 4,071,153.45 and 820,400.70 is: 1,230,779.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,713,708.70 : 4,071,153.45 = 820,400.70 : x
  2. Step 2: Convert to fraction form
    2,713,708.70/4,071,153.45 = 820,400.70/x
  3. Step 3: Cross multiply
    2,713,708.70x = 4,071,153.45 × 820,400.70
  4. Step 4: Simplify right side
    2,713,708.70x = 3,339,977,140,187.42
  5. Step 5: Solve for x
    x = 3,339,977,140,187.42/2,713,708.70
  6. Step 6: Final answer
    x = 1,230,779.54

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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.