Home / 807,501.22-1,211,256.41-208,421.42

Finding the Fourth Proportional to 807,501.22, 1,211,256.41 and 208,421.42

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Solution

The fourth proportional to 807,501.22, 1,211,256.41 and 208,421.42 is: 312,633.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,501.22 : 1,211,256.41 = 208,421.42 : x
  2. Step 2: Convert to fraction form
    807,501.22/1,211,256.41 = 208,421.42/x
  3. Step 3: Cross multiply
    807,501.22x = 1,211,256.41 × 208,421.42
  4. Step 4: Simplify right side
    807,501.22x = 252,451,773,857.91
  5. Step 5: Solve for x
    x = 252,451,773,857.91/807,501.22
  6. Step 6: Final answer
    x = 312,633.31

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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.