Home / 2,107,165.20-3,160,427.04-687,219

Finding the Fourth Proportional to 2,107,165.20, 3,160,427.04 and 687,219

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Solution

The fourth proportional to 2,107,165.20, 3,160,427.04 and 687,219 is: 1,030,723.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,107,165.20 : 3,160,427.04 = 687,219 : x
  2. Step 2: Convert to fraction form
    2,107,165.20/3,160,427.04 = 687,219/x
  3. Step 3: Cross multiply
    2,107,165.20x = 3,160,427.04 × 687,219
  4. Step 4: Simplify right side
    2,107,165.20x = 2,171,905,510,001.76
  5. Step 5: Solve for x
    x = 2,171,905,510,001.76/2,107,165.20
  6. Step 6: Final answer
    x = 1,030,723.89

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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.