Home / 672,131.17-1,005,876.91-415,858.51

Finding the Fourth Proportional to 672,131.17, 1,005,876.91 and 415,858.51

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Solution

The fourth proportional to 672,131.17, 1,005,876.91 and 415,858.51 is: 622,352.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,131.17 : 1,005,876.91 = 415,858.51 : x
  2. Step 2: Convert to fraction form
    672,131.17/1,005,876.91 = 415,858.51/x
  3. Step 3: Cross multiply
    672,131.17x = 1,005,876.91 × 415,858.51
  4. Step 4: Simplify right side
    672,131.17x = 418,302,473,036.00
  5. Step 5: Solve for x
    x = 418,302,473,036.00/672,131.17
  6. Step 6: Final answer
    x = 622,352.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.