Home / 642,502.02-964,189.62-343,197.84

Finding the Fourth Proportional to 642,502.02, 964,189.62 and 343,197.84

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Solution

The fourth proportional to 642,502.02, 964,189.62 and 343,197.84 is: 515,029.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,502.02 : 964,189.62 = 343,197.84 : x
  2. Step 2: Convert to fraction form
    642,502.02/964,189.62 = 343,197.84/x
  3. Step 3: Cross multiply
    642,502.02x = 964,189.62 × 343,197.84
  4. Step 4: Simplify right side
    642,502.02x = 330,907,794,934.42
  5. Step 5: Solve for x
    x = 330,907,794,934.42/642,502.02
  6. Step 6: Final answer
    x = 515,029.97

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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.