Home / 808,388.70-1,213,020.45-335,121.90

Finding the Fourth Proportional to 808,388.70, 1,213,020.45 and 335,121.90

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Solution

The fourth proportional to 808,388.70, 1,213,020.45 and 335,121.90 is: 502,864.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,388.70 : 1,213,020.45 = 335,121.90 : x
  2. Step 2: Convert to fraction form
    808,388.70/1,213,020.45 = 335,121.90/x
  3. Step 3: Cross multiply
    808,388.70x = 1,213,020.45 × 335,121.90
  4. Step 4: Simplify right side
    808,388.70x = 406,509,717,942.86
  5. Step 5: Solve for x
    x = 406,509,717,942.86/808,388.70
  6. Step 6: Final answer
    x = 502,864.18

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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.