Home / 2,285,131.20-3,428,176.16-687,811.20

Finding the Fourth Proportional to 2,285,131.20, 3,428,176.16 and 687,811.20

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Solution

The fourth proportional to 2,285,131.20, 3,428,176.16 and 687,811.20 is: 1,031,861.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,285,131.20 : 3,428,176.16 = 687,811.20 : x
  2. Step 2: Convert to fraction form
    2,285,131.20/3,428,176.16 = 687,811.20/x
  3. Step 3: Cross multiply
    2,285,131.20x = 3,428,176.16 × 687,811.20
  4. Step 4: Simplify right side
    2,285,131.20x = 2,357,937,958,420.99
  5. Step 5: Solve for x
    x = 2,357,937,958,420.99/2,285,131.20
  6. Step 6: Final answer
    x = 1,031,861.08

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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.