Home / 497,858.42-687,097.90-304,379.66

Finding the Fourth Proportional to 497,858.42, 687,097.90 and 304,379.66

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Solution

The fourth proportional to 497,858.42, 687,097.90 and 304,379.66 is: 420,076.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,858.42 : 687,097.90 = 304,379.66 : x
  2. Step 2: Convert to fraction form
    497,858.42/687,097.90 = 304,379.66/x
  3. Step 3: Cross multiply
    497,858.42x = 687,097.90 × 304,379.66
  4. Step 4: Simplify right side
    497,858.42x = 209,138,625,188.71
  5. Step 5: Solve for x
    x = 209,138,625,188.71/497,858.42
  6. Step 6: Final answer
    x = 420,076.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.