Home / 2,103,131.80-3,154,697.70-683,331.40

Finding the Fourth Proportional to 2,103,131.80, 3,154,697.70 and 683,331.40

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Solution

The fourth proportional to 2,103,131.80, 3,154,697.70 and 683,331.40 is: 1,024,997.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,103,131.80 : 3,154,697.70 = 683,331.40 : x
  2. Step 2: Convert to fraction form
    2,103,131.80/3,154,697.70 = 683,331.40/x
  3. Step 3: Cross multiply
    2,103,131.80x = 3,154,697.70 × 683,331.40
  4. Step 4: Simplify right side
    2,103,131.80x = 2,155,703,995,917.78
  5. Step 5: Solve for x
    x = 2,155,703,995,917.78/2,103,131.80
  6. Step 6: Final answer
    x = 1,024,997.10

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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.