Home / 1,821,139.80-2,731,709.70-623,101.20

Finding the Fourth Proportional to 1,821,139.80, 2,731,709.70 and 623,101.20

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Solution

The fourth proportional to 1,821,139.80, 2,731,709.70 and 623,101.20 is: 934,651.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,139.80 : 2,731,709.70 = 623,101.20 : x
  2. Step 2: Convert to fraction form
    1,821,139.80/2,731,709.70 = 623,101.20/x
  3. Step 3: Cross multiply
    1,821,139.80x = 2,731,709.70 × 623,101.20
  4. Step 4: Simplify right side
    1,821,139.80x = 1,702,131,592,121.64
  5. Step 5: Solve for x
    x = 1,702,131,592,121.64/1,821,139.80
  6. Step 6: Final answer
    x = 934,651.80

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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.