Home / 497,959.08-687,241.71-283,131.42

Finding the Fourth Proportional to 497,959.08, 687,241.71 and 283,131.42

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Solution

The fourth proportional to 497,959.08, 687,241.71 and 283,131.42 is: 390,754.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,959.08 : 687,241.71 = 283,131.42 : x
  2. Step 2: Convert to fraction form
    497,959.08/687,241.71 = 283,131.42/x
  3. Step 3: Cross multiply
    497,959.08x = 687,241.71 × 283,131.42
  4. Step 4: Simplify right side
    497,959.08x = 194,579,721,235.53
  5. Step 5: Solve for x
    x = 194,579,721,235.53/497,959.08
  6. Step 6: Final answer
    x = 390,754.44

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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.