Home / 1,550,005.76-2,325,052.64-428,074.76

Finding the Fourth Proportional to 1,550,005.76, 2,325,052.64 and 428,074.76

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Solution

The fourth proportional to 1,550,005.76, 2,325,052.64 and 428,074.76 is: 642,124.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550,005.76 : 2,325,052.64 = 428,074.76 : x
  2. Step 2: Convert to fraction form
    1,550,005.76/2,325,052.64 = 428,074.76/x
  3. Step 3: Cross multiply
    1,550,005.76x = 2,325,052.64 × 428,074.76
  4. Step 4: Simplify right side
    1,550,005.76x = 995,296,350,855.37
  5. Step 5: Solve for x
    x = 995,296,350,855.37/1,550,005.76
  6. Step 6: Final answer
    x = 642,124.29

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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.