Home / 2,145,459.84-3,218,139.95-1,080,215.88

Finding the Fourth Proportional to 2,145,459.84, 3,218,139.95 and 1,080,215.88

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Solution

The fourth proportional to 2,145,459.84, 3,218,139.95 and 1,080,215.88 is: 1,620,298.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,145,459.84 : 3,218,139.95 = 1,080,215.88 : x
  2. Step 2: Convert to fraction form
    2,145,459.84/3,218,139.95 = 1,080,215.88/x
  3. Step 3: Cross multiply
    2,145,459.84x = 3,218,139.95 × 1,080,215.88
  4. Step 4: Simplify right side
    2,145,459.84x = 3,476,285,872,651.33
  5. Step 5: Solve for x
    x = 3,476,285,872,651.33/2,145,459.84
  6. Step 6: Final answer
    x = 1,620,298.74

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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.