Home / 1,500,163.20-2,070,221.76-821,093.76

Finding the Fourth Proportional to 1,500,163.20, 2,070,221.76 and 821,093.76

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Solution

The fourth proportional to 1,500,163.20, 2,070,221.76 and 821,093.76 is: 1,133,107.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,163.20 : 2,070,221.76 = 821,093.76 : x
  2. Step 2: Convert to fraction form
    1,500,163.20/2,070,221.76 = 821,093.76/x
  3. Step 3: Cross multiply
    1,500,163.20x = 2,070,221.76 × 821,093.76
  4. Step 4: Simplify right side
    1,500,163.20x = 1,699,846,168,952.22
  5. Step 5: Solve for x
    x = 1,699,846,168,952.22/1,500,163.20
  6. Step 6: Final answer
    x = 1,133,107.50

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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.