Home / 1,115,221.68-1,672,239.60-441,275.76

Finding the Fourth Proportional to 1,115,221.68, 1,672,239.60 and 441,275.76

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Solution

The fourth proportional to 1,115,221.68, 1,672,239.60 and 441,275.76 is: 661,679.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,221.68 : 1,672,239.60 = 441,275.76 : x
  2. Step 2: Convert to fraction form
    1,115,221.68/1,672,239.60 = 441,275.76/x
  3. Step 3: Cross multiply
    1,115,221.68x = 1,672,239.60 × 441,275.76
  4. Step 4: Simplify right side
    1,115,221.68x = 737,918,800,392.10
  5. Step 5: Solve for x
    x = 737,918,800,392.10/1,115,221.68
  6. Step 6: Final answer
    x = 661,679.03

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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.