Home / 2,078,715.80-3,115,449.30-1,011,459.80

Finding the Fourth Proportional to 2,078,715.80, 3,115,449.30 and 1,011,459.80

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Solution

The fourth proportional to 2,078,715.80, 3,115,449.30 and 1,011,459.80 is: 1,515,912.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,715.80 : 3,115,449.30 = 1,011,459.80 : x
  2. Step 2: Convert to fraction form
    2,078,715.80/3,115,449.30 = 1,011,459.80/x
  3. Step 3: Cross multiply
    2,078,715.80x = 3,115,449.30 × 1,011,459.80
  4. Step 4: Simplify right side
    2,078,715.80x = 3,151,151,725,888.14
  5. Step 5: Solve for x
    x = 3,151,151,725,888.14/2,078,715.80
  6. Step 6: Final answer
    x = 1,515,912.72

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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.