Home / 808,217.30-1,211,807.55-335,090.90

Finding the Fourth Proportional to 808,217.30, 1,211,807.55 and 335,090.90

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Solution

The fourth proportional to 808,217.30, 1,211,807.55 and 335,090.90 is: 502,421.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,217.30 : 1,211,807.55 = 335,090.90 : x
  2. Step 2: Convert to fraction form
    808,217.30/1,211,807.55 = 335,090.90/x
  3. Step 3: Cross multiply
    808,217.30x = 1,211,807.55 × 335,090.90
  4. Step 4: Simplify right side
    808,217.30x = 406,065,682,556.30
  5. Step 5: Solve for x
    x = 406,065,682,556.30/808,217.30
  6. Step 6: Final answer
    x = 502,421.42

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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.