Home / 1,418,398.38-1,957,321.53-773,780.13

Finding the Fourth Proportional to 1,418,398.38, 1,957,321.53 and 773,780.13

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Solution

The fourth proportional to 1,418,398.38, 1,957,321.53 and 773,780.13 is: 1,067,779.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,398.38 : 1,957,321.53 = 773,780.13 : x
  2. Step 2: Convert to fraction form
    1,418,398.38/1,957,321.53 = 773,780.13/x
  3. Step 3: Cross multiply
    1,418,398.38x = 1,957,321.53 × 773,780.13
  4. Step 4: Simplify right side
    1,418,398.38x = 1,514,536,507,935.20
  5. Step 5: Solve for x
    x = 1,514,536,507,935.20/1,418,398.38
  6. Step 6: Final answer
    x = 1,067,779.36

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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.