Home / 1,172,693.42-1,618,320.03-636,149.42

Finding the Fourth Proportional to 1,172,693.42, 1,618,320.03 and 636,149.42

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Solution

The fourth proportional to 1,172,693.42, 1,618,320.03 and 636,149.42 is: 877,887.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,693.42 : 1,618,320.03 = 636,149.42 : x
  2. Step 2: Convert to fraction form
    1,172,693.42/1,618,320.03 = 636,149.42/x
  3. Step 3: Cross multiply
    1,172,693.42x = 1,618,320.03 × 636,149.42
  4. Step 4: Simplify right side
    1,172,693.42x = 1,029,493,348,458.88
  5. Step 5: Solve for x
    x = 1,029,493,348,458.88/1,172,693.42
  6. Step 6: Final answer
    x = 877,887.89

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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.