Home / 557,523.02-767,974.92-449,791.40

Finding the Fourth Proportional to 557,523.02, 767,974.92 and 449,791.40

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Solution

The fourth proportional to 557,523.02, 767,974.92 and 449,791.40 is: 619,577.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,523.02 : 767,974.92 = 449,791.40 : x
  2. Step 2: Convert to fraction form
    557,523.02/767,974.92 = 449,791.40/x
  3. Step 3: Cross multiply
    557,523.02x = 767,974.92 × 449,791.40
  4. Step 4: Simplify right side
    557,523.02x = 345,428,514,431.69
  5. Step 5: Solve for x
    x = 345,428,514,431.69/557,523.02
  6. Step 6: Final answer
    x = 619,577.13

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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.