Home / 2,087,647.20-2,880,904.32-1,228,262.76

Finding the Fourth Proportional to 2,087,647.20, 2,880,904.32 and 1,228,262.76

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Solution

The fourth proportional to 2,087,647.20, 2,880,904.32 and 1,228,262.76 is: 1,694,973.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087,647.20 : 2,880,904.32 = 1,228,262.76 : x
  2. Step 2: Convert to fraction form
    2,087,647.20/2,880,904.32 = 1,228,262.76/x
  3. Step 3: Cross multiply
    2,087,647.20x = 2,880,904.32 × 1,228,262.76
  4. Step 4: Simplify right side
    2,087,647.20x = 3,538,507,491,379.12
  5. Step 5: Solve for x
    x = 3,538,507,491,379.12/2,087,647.20
  6. Step 6: Final answer
    x = 1,694,973.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.