Home / 711,419.76-1,067,131.44-290,695.65

Finding the Fourth Proportional to 711,419.76, 1,067,131.44 and 290,695.65

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Solution

The fourth proportional to 711,419.76, 1,067,131.44 and 290,695.65 is: 436,044.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,419.76 : 1,067,131.44 = 290,695.65 : x
  2. Step 2: Convert to fraction form
    711,419.76/1,067,131.44 = 290,695.65/x
  3. Step 3: Cross multiply
    711,419.76x = 1,067,131.44 × 290,695.65
  4. Step 4: Simplify right side
    711,419.76x = 310,210,467,586.24
  5. Step 5: Solve for x
    x = 310,210,467,586.24/711,419.76
  6. Step 6: Final answer
    x = 436,044.21

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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.