Home / 1,172,691.42-1,618,317.27-636,147.42

Finding the Fourth Proportional to 1,172,691.42, 1,618,317.27 and 636,147.42

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Solution

The fourth proportional to 1,172,691.42, 1,618,317.27 and 636,147.42 is: 877,885.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,691.42 : 1,618,317.27 = 636,147.42 : x
  2. Step 2: Convert to fraction form
    1,172,691.42/1,618,317.27 = 636,147.42/x
  3. Step 3: Cross multiply
    1,172,691.42x = 1,618,317.27 × 636,147.42
  4. Step 4: Simplify right side
    1,172,691.42x = 1,029,488,356,051.94
  5. Step 5: Solve for x
    x = 1,029,488,356,051.94/1,172,691.42
  6. Step 6: Final answer
    x = 877,885.13

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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.