Home / 497,974.30-687,257.76-304,495.41

Finding the Fourth Proportional to 497,974.30, 687,257.76 and 304,495.41

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Solution

The fourth proportional to 497,974.30, 687,257.76 and 304,495.41 is: 420,236.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,974.30 : 687,257.76 = 304,495.41 : x
  2. Step 2: Convert to fraction form
    497,974.30/687,257.76 = 304,495.41/x
  3. Step 3: Cross multiply
    497,974.30x = 687,257.76 × 304,495.41
  4. Step 4: Simplify right side
    497,974.30x = 209,266,831,884.41
  5. Step 5: Solve for x
    x = 209,266,831,884.41/497,974.30
  6. Step 6: Final answer
    x = 420,236.21

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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.