Home / 1,876,642.83-2,815,839.05-1,118,453.67

Finding the Fourth Proportional to 1,876,642.83, 2,815,839.05 and 1,118,453.67

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Solution

The fourth proportional to 1,876,642.83, 2,815,839.05 and 1,118,453.67 is: 1,678,201.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,876,642.83 : 2,815,839.05 = 1,118,453.67 : x
  2. Step 2: Convert to fraction form
    1,876,642.83/2,815,839.05 = 1,118,453.67/x
  3. Step 3: Cross multiply
    1,876,642.83x = 2,815,839.05 × 1,118,453.67
  4. Step 4: Simplify right side
    1,876,642.83x = 3,149,385,514,009.55
  5. Step 5: Solve for x
    x = 3,149,385,514,009.55/1,876,642.83
  6. Step 6: Final answer
    x = 1,678,201.87

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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.