Home / 711,427.22-1,067,142.66-290,703.09

Finding the Fourth Proportional to 711,427.22, 1,067,142.66 and 290,703.09

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Solution

The fourth proportional to 711,427.22, 1,067,142.66 and 290,703.09 is: 436,055.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,427.22 : 1,067,142.66 = 290,703.09 : x
  2. Step 2: Convert to fraction form
    711,427.22/1,067,142.66 = 290,703.09/x
  3. Step 3: Cross multiply
    711,427.22x = 1,067,142.66 × 290,703.09
  4. Step 4: Simplify right side
    711,427.22x = 310,221,668,732.82
  5. Step 5: Solve for x
    x = 310,221,668,732.82/711,427.22
  6. Step 6: Final answer
    x = 436,055.38

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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.